In light of the recent brouhaha in Singapore over senior Pastor Rony Tan's insensitive comments about Buddhism which reflected gross ignorance and misconceptions, I felt that it is my duty to help clear misconceptions in Buddhism. Promoting inter-faith discussions is an integral aspect of a truly multi-religious society. True religious harmony cannot engender beneath the veneer of mere tolerance of religions other than one's own; having at least a basic understanding of other religions is a necessary ingredient.
Below is an article from Metta Lodge which I felt is suitable as a basic introduction to the fundamental concepts in Buddhism for non-Buddhists. I have also added a few other points in it:
Like in many religions, among Buddhists are many who are joss-stick Buddhists, coming to the centres only during festivals or when in need. Many who "inherit" their religion are merely paying lip service to it. The ones who discovered the religion by themselves and who studies it well are usually the more serious students of the Dhamma. (BTW many centres have already done away with joss-sticks as this has Nothing to do with the Buddha's teachings!).
To help you understand, the Buddhist world view can best be understood if we see it as being based upon five major teachings:
I. MUTABILITY or CHANGE
All objects, conditions and creations are in a continuous state of change. Nothing that came together because of causes and conditions is eternally fixed or unchanging. Birth, growth, decay and death are inevitable for all material objects, men, societies and states of mind. Herein lies the answer to the mystery of creation; new forms arise out of the old; each new condition is determined by that which preceded it. When asked "who created the world?" a Buddhist will have to ask back "which world are you referring to because before this world was another and before that another ad infinatum!". The present "Big Bang, Big Crunch and Big Bounce hypothesis" is very much in tune with what we are taught ie before this universe was another and that all universes come about and expand, then reaches a period where expansion equals contraction, and then contraction occurs till it all 'crunches' and from that a new universe re develops in an endless cycle. The Buddha on the night of his enlightenment could look back 91 such cycles and yet that was not the beginning as there were more!
II. CAUSE and EFFECT
This process of change, however, is not chaotic but rather is regulated by cause and effect. Cause and effect is impersonal, impartial and unchanging. We drop a glass cup and it breaks no matter who we are. Just as an apple falls to the ground from the tree even though it knows nothing about Newton's laws of motion, likewise even those who do not know about or accept Buddhism are still subjected to the laws of kamma for that is the verylaw of nature. Everything that comes to be, came about because of causes and conditions that are ceaselessly changing. At every moment in time, our response to the present conditions changes it again, and hence our path, our destinations and our lives are in our hands based on what we do at every moment. We create our kamma at every moment in time by changing it moment to moment. There is NO predestination or Fate for at every moment our destination or fate is adjusted, fine tuned by our acts in respond to the present. What we are now depends on our past and what do now will determine the future. This is why Buddhist mediation trains the mind to focus on the present.
III. SELFISHNESS and SUFFERING
Cause and effect includes not only the principles of physics and chemistry so familiar to the modern world; it also includes moral or psychological cause and effect known as kamma-vipaka, or more commonly, “kamma”
Kamma acts through time, and thus the full effects of one’s thoughts and deeds may not become manifest until some years later.
“Not in the sky, not in the midst of the sea, nor if we enter into the clefts of the mountains, is there known a spot in the whole world where a man might be freed from an evil deed.”
“Not in the sky, not in the midst of the sea, nor if we enter into the clefts of the mountains, is there known a spot in the whole world where death could not overcome a mortal.” (Dpd. 17-8)
One important aspect of kamma is that selfishness results in suffering for the selfish party in proportion to the amount of wrong that has been committed. Conversely, love, compassion and other virtuous states of mind create proportionate amounts of happiness and emotional well-being. Often this is stated as, “Desire is the cause of suffering”. And in this context the word which has been translated into English as “Suffering” is the Pali word Dukkha.
Dukkha is a term which includes all types of unpleasant experiences such as worry, fear, sorrow, dissatisfaction, disharmony, etc. When the mind is craving pleasures or is strongly motivated by greed, hatred or egotism it becomes predisposed to dukkha.
A paradox is noted in that happiness is best found by those who are not preoccupied with looking for it.
Thus we find in Buddhism no eternal punishment or eternal reward, but rather happiness and sorrow in proportion to one’s own thoughts and actions. Both Buddhists and non-Buddhists can be reborn in the heavens depending on their kamma. Buddha has never said that only those who accept his teachings will have higher rebirths. It all depends on one's kamma, which is determined by one's actions and thoughts. Nevertheless, the ultimate aim in Buddhism is to attain enlighenment, and not to merely reside in heavens because nothing is permanent.
IV. Nibbana
Since all which is born must die, since all conditioned phenomena must change, the only thing immortal, infinite, and unchanging is that which was never born and is not compounded.
This is Nibbana. Since it is neither matter nor energy, and since it does not exist within space and time, it is completely unrelated to anything with which we are familiar. Thus, it cannot be described, conceptualized nor understood by the normal human mind. It is known only by direct experience beyond sense perception and is the end of all dukkha.
When Nibbana is experienced, egotism has died, for Nibbana comes only with the abolition of all selfishness and craving.
Yet one does not vegetate but continues to act and work as long as the body remains alive. This is Buddhist salvation, and it is found by the training of one’s mind and a maturing of the personality. Since it can never be known or comprehended except by direct experience, one should not concern oneself with looking for Nibbana per se, but rather one should seek to abolish selfishness from his own personality, and this is a rewarding endeavour regardless of whether or not the highest goal is reached. Said the Buddha:
“Liberated, the wise are indifferent to the senses, and have no need to seek anything; passionless they are beyond pleasure and displeasure.”
V. Finally,
the above four premises can be verified by one’s own reasoning and experience with no dependence on external authority. Blind faith is certainly not encouraged and is in fact antithetical to Buddhism.
“Just as people test the purity of gold by burning it in fire, by cutting it, by examining it on a touchstone, so exactly should you, my disciples, accept my words after subjecting them to a critical test and not out of reverence to me.” - Lord Buddha
--
A flower falls,
even though we love it;
and a weed grows,
even though we do not love it.
Saturday, February 27, 2010
Tuesday, December 08, 2009
Science As An Impetus For Change Towards A Better World
Science, being a body of knowledge that is based on empirical observation and logical deduction, has always prided itself as the light of reason which illuminates the darkness of ignorance shrouding the world. It is a catalyst of change and the impetus for technological advancement.
As the most important prerequisite for technological improvements, science undoubtedly has a far-reaching influence and plays an important role in society. Enhanced understanding of the various phenomena in nature has enabled us to create a multitude of devices and machines to improve our lives. Indeed, without science, technological marvels such as the now ubiquitous computers, mobile phones, air-conditioners and countless other devices which we have taken for granted would not have been possible, let alone construct skyscrapers and entire cities. Advances in medical science have also given us a plethora of medicine and vaccines in our battles against diseases and extending the average lifespan of humans. Yet in the same breath, science has also led to the invention of the machinery of modern warfare and weapons of mass destruction such as nuclear, chemical and biological weapons. A scientifically-inspired technological society is thus not necessarily a better world.
Blindly supporting science without a moral compass would only lead to more problems. What is needed in the face of the mounting challenges in the 21st century is a science that is bold and creative, yet ethical, compassionate and inclusive. For too long we have narrowly focused on utilising science for the betterment of the human race alone, even to the extent of neglecting the environment we live in. We have exploited animals for research on human diseases, deforested vast swathes of land, polluted the environment and destroyed the natural habitats of countless creatures in our quest to gather ever more resources to feed our insatiable consumerism. Who are we to proclaim ourselves as masters of nature and that it is our right to exploit the environment and other sentient beings for our sole benefit? We have misused the name of science in our misguided pursuit of improving our quality of life. Such a cold and egocentric kind of science is untenable in the long run. It is time to rethink our place in the universe and treat all sentient beings as equals.
Nevertheless, in a world griped by numerous grave problems such as global warming, climate change, pandemics, wars, impending oil, food and water shortages, science remains our best hope of solving them. Green technology, a field which I am personally interested in, holds the promise of ameliorating environmental problems such as global warming and pollution. Clean, renewable alternative sources of energy such as solar, wind and hydroelectric power will not only help avert the impending energy crisis due to declining reserves of non-renewable fossil fuels, but also shift the balance of the control of energy resources away from the hands of a few countries to the rest of the world, paving the way towards a more level global playing field and peaceful world where wars would no longer have to be waged over oil.
More than merely being a driver of technological improvement, science is also a candle in the dark which shines the path towards a more enlightened future. Science serves as a bulwark against blind faith and dogmatic mysticism. Entrenched ways of thinking and an aversion to trying out new ideas are impediments to alleviating the problems we face. The essence of science lies in the openness to new ideas and willingness to modify or discard old theories and ways of thinking in favour of more productive ones which are consistent with empirical observation, coupled with a healthy dose of scepticism and relentless scrutiny. Adopting such an attitude in tackling the global problems looming before us would enable us to find efficacious solutions. To quote the late astronomer and populariser of science, Carl Sagan, “Science by itself cannot advocate courses of human action, but it can certainly illuminate the possible consequences of alternative courses of action.”
The onslaught of progress and wave of change is inevitable. Instead of trying to resist it, we should embrace science as an impetus for change. Science is like a double-edge sword; it has the potential to do much good and help us build a better world, but if misused, it can spawn more problems and lead to deleterious consequences. What is clear is that science alone will not be the answer to all our problems. Science has to be checked by ethics and an appropriate amount of regulation. Unbridled pursuit of science and technology is dangerous, but so too is an overdose of moralistic or religiously-guided regulation which would only stifle the progress of science as well as our chance of finding solutions to tackle the problems we all face.
As the most important prerequisite for technological improvements, science undoubtedly has a far-reaching influence and plays an important role in society. Enhanced understanding of the various phenomena in nature has enabled us to create a multitude of devices and machines to improve our lives. Indeed, without science, technological marvels such as the now ubiquitous computers, mobile phones, air-conditioners and countless other devices which we have taken for granted would not have been possible, let alone construct skyscrapers and entire cities. Advances in medical science have also given us a plethora of medicine and vaccines in our battles against diseases and extending the average lifespan of humans. Yet in the same breath, science has also led to the invention of the machinery of modern warfare and weapons of mass destruction such as nuclear, chemical and biological weapons. A scientifically-inspired technological society is thus not necessarily a better world.
Blindly supporting science without a moral compass would only lead to more problems. What is needed in the face of the mounting challenges in the 21st century is a science that is bold and creative, yet ethical, compassionate and inclusive. For too long we have narrowly focused on utilising science for the betterment of the human race alone, even to the extent of neglecting the environment we live in. We have exploited animals for research on human diseases, deforested vast swathes of land, polluted the environment and destroyed the natural habitats of countless creatures in our quest to gather ever more resources to feed our insatiable consumerism. Who are we to proclaim ourselves as masters of nature and that it is our right to exploit the environment and other sentient beings for our sole benefit? We have misused the name of science in our misguided pursuit of improving our quality of life. Such a cold and egocentric kind of science is untenable in the long run. It is time to rethink our place in the universe and treat all sentient beings as equals.
Nevertheless, in a world griped by numerous grave problems such as global warming, climate change, pandemics, wars, impending oil, food and water shortages, science remains our best hope of solving them. Green technology, a field which I am personally interested in, holds the promise of ameliorating environmental problems such as global warming and pollution. Clean, renewable alternative sources of energy such as solar, wind and hydroelectric power will not only help avert the impending energy crisis due to declining reserves of non-renewable fossil fuels, but also shift the balance of the control of energy resources away from the hands of a few countries to the rest of the world, paving the way towards a more level global playing field and peaceful world where wars would no longer have to be waged over oil.
More than merely being a driver of technological improvement, science is also a candle in the dark which shines the path towards a more enlightened future. Science serves as a bulwark against blind faith and dogmatic mysticism. Entrenched ways of thinking and an aversion to trying out new ideas are impediments to alleviating the problems we face. The essence of science lies in the openness to new ideas and willingness to modify or discard old theories and ways of thinking in favour of more productive ones which are consistent with empirical observation, coupled with a healthy dose of scepticism and relentless scrutiny. Adopting such an attitude in tackling the global problems looming before us would enable us to find efficacious solutions. To quote the late astronomer and populariser of science, Carl Sagan, “Science by itself cannot advocate courses of human action, but it can certainly illuminate the possible consequences of alternative courses of action.”
The onslaught of progress and wave of change is inevitable. Instead of trying to resist it, we should embrace science as an impetus for change. Science is like a double-edge sword; it has the potential to do much good and help us build a better world, but if misused, it can spawn more problems and lead to deleterious consequences. What is clear is that science alone will not be the answer to all our problems. Science has to be checked by ethics and an appropriate amount of regulation. Unbridled pursuit of science and technology is dangerous, but so too is an overdose of moralistic or religiously-guided regulation which would only stifle the progress of science as well as our chance of finding solutions to tackle the problems we all face.
Tuesday, June 02, 2009
Safeguarding Secularism in Singapore
With the increasing religiosity in our society, pockets of self-righteous religious zealots who seek to impose their beliefs on others have also engendered. This is a cause for concern, for it threatens one of the fundamental tenets on which our society is built upon – secularism. It is not a fluke that Singapore has managed to come thus far and maintain racial and religious harmony. Rather, our harmonious multiracial and multi-religious society, which is the envy of many countries, is due largely to the fact that we have ensured secularism to be the prevailing tenor of our society. It is with this conviction with which I disagree with NMP Dr Thio Li-ann’s parliamentary speech “A Recipe for Disharmony”, in which she mentioned that “…militant secularism is an illiberal and undemocratic vice in seeking to gag religious views in the public square and so to privilege its atheistic values, as in communist state.” That Dr Thio made the speech not long after the AWARE saga seemed to imply that she has directed much of the vitriol to those were against the old ‘new guard’ exco of AWARE, though she did not explicitly mention this in her speech.
For those who have not been following the news, the AWARE saga started in April this year when a group of Christians hailing from the same church took over leadership of AWARE (a secular voluntary welfare organisation) by getting fellow church members to sign up as new members and vote the former in through sheer numbers. It is no surprise that the use of such underhand tactics to gain leadership of a secular civil group in Singapore has resulted in a public backlash. The old ‘new guard’ of AWARE led by Ms Jocie Lau claimed to champion for mainstream values such as ‘anti-gay’ notions. Nevertheless, the fact that her team only comprised of people from her faith and church begs the question of their true agenda. If what they were really pushing for were mainstream values, should they not have found it prudent to include people of other faiths and free-thinkers as well? Surely there is no dearth of capable people from other faiths in Singapore? The reticence of Ms Lau and her team in announcing their goals and directions for AWARE after gaining leadership only served to add to the public unease. It was even more astounding that Ms Lau had the temerity to suggest that the press harboured hidden motives in its reporting of the story when she and her team resorted to stealthy tactics of gaining control in an organisation and then keeping mum about their motives. People who live in glass houses should not throw stones. Minister for Community Development, Youth and Sports, Dr Vivian Balakrishnan, has mentioned the importance of having a ‘rainbow coalition’, which means including people from various faiths and races, in political and civil activist groups which claim to be secular. Doing so would be far more effective in allaying public unease about the ability of the organisation to ensure that a plurality of voices and opinions of those from other faiths and races would also be heard and considered in the decision-making process, as compared to mere rhetoric.
It would be naïve to believe that religious tensions in Singapore are completely non-existent. The public backlash following the AWARE saga has showed us how easy it is to stress the fabric of our society’s cohesiveness. We need to exercise caution when dealing with matters of religion in the public sphere. Religious leaders must also be prudent when addressing their followers and not misuse the pulpit like what Pastor Derek Hong, from the same church as Ms Lau and the rest of the old ‘new guard’ exco of AWARE, did when he called on his fellow church members to rally behind Ms Lau and her team. While I agree with Dr Thio that “religiously-informed views” can contribute positively to public debate, we must not condone any self-righteous mentality by any particular religious group. No religious group should unilaterally claim that it alone represents the mainstream and impose its ideology and beliefs on others. Only then can we ensure a pluralistic society where religious freedom is the order of the day; a society where no one would be coerced into subscribing to beliefs and convictions imposed by others. It is reassuring to know that the various religious leaders in Singapore have readily come forth to express their commitment in upholding secularism in our society after the AWARE saga.
Incidents such as the AWARE saga serve as a timely reminder for us that politics and religion should be segregated instead of being conflated. Parents, schools and religious leaders have to inculcate in their children the importance of having respect towards those from other faiths. Only when the various religious groups discard the notion that their religion is the one and only one ‘right’ religion, or to paraphrase Obama in his recent speech in Cairo that “the measure of one’s faith (is not) based on the rejection of other faiths”, can true respect for each other’s faiths engender. Otherwise, the religious harmony which we have will only be skin deep and go no further than mere religious tolerance, without much understanding of the other faiths; it would only exist as a façade under which mindsets harbouring religious superiority and self-righteousness would take hold, and this would be the real “recipe for disharmony”.
For those who have not been following the news, the AWARE saga started in April this year when a group of Christians hailing from the same church took over leadership of AWARE (a secular voluntary welfare organisation) by getting fellow church members to sign up as new members and vote the former in through sheer numbers. It is no surprise that the use of such underhand tactics to gain leadership of a secular civil group in Singapore has resulted in a public backlash. The old ‘new guard’ of AWARE led by Ms Jocie Lau claimed to champion for mainstream values such as ‘anti-gay’ notions. Nevertheless, the fact that her team only comprised of people from her faith and church begs the question of their true agenda. If what they were really pushing for were mainstream values, should they not have found it prudent to include people of other faiths and free-thinkers as well? Surely there is no dearth of capable people from other faiths in Singapore? The reticence of Ms Lau and her team in announcing their goals and directions for AWARE after gaining leadership only served to add to the public unease. It was even more astounding that Ms Lau had the temerity to suggest that the press harboured hidden motives in its reporting of the story when she and her team resorted to stealthy tactics of gaining control in an organisation and then keeping mum about their motives. People who live in glass houses should not throw stones. Minister for Community Development, Youth and Sports, Dr Vivian Balakrishnan, has mentioned the importance of having a ‘rainbow coalition’, which means including people from various faiths and races, in political and civil activist groups which claim to be secular. Doing so would be far more effective in allaying public unease about the ability of the organisation to ensure that a plurality of voices and opinions of those from other faiths and races would also be heard and considered in the decision-making process, as compared to mere rhetoric.
It would be naïve to believe that religious tensions in Singapore are completely non-existent. The public backlash following the AWARE saga has showed us how easy it is to stress the fabric of our society’s cohesiveness. We need to exercise caution when dealing with matters of religion in the public sphere. Religious leaders must also be prudent when addressing their followers and not misuse the pulpit like what Pastor Derek Hong, from the same church as Ms Lau and the rest of the old ‘new guard’ exco of AWARE, did when he called on his fellow church members to rally behind Ms Lau and her team. While I agree with Dr Thio that “religiously-informed views” can contribute positively to public debate, we must not condone any self-righteous mentality by any particular religious group. No religious group should unilaterally claim that it alone represents the mainstream and impose its ideology and beliefs on others. Only then can we ensure a pluralistic society where religious freedom is the order of the day; a society where no one would be coerced into subscribing to beliefs and convictions imposed by others. It is reassuring to know that the various religious leaders in Singapore have readily come forth to express their commitment in upholding secularism in our society after the AWARE saga.
Incidents such as the AWARE saga serve as a timely reminder for us that politics and religion should be segregated instead of being conflated. Parents, schools and religious leaders have to inculcate in their children the importance of having respect towards those from other faiths. Only when the various religious groups discard the notion that their religion is the one and only one ‘right’ religion, or to paraphrase Obama in his recent speech in Cairo that “the measure of one’s faith (is not) based on the rejection of other faiths”, can true respect for each other’s faiths engender. Otherwise, the religious harmony which we have will only be skin deep and go no further than mere religious tolerance, without much understanding of the other faiths; it would only exist as a façade under which mindsets harbouring religious superiority and self-righteousness would take hold, and this would be the real “recipe for disharmony”.
Tuesday, December 16, 2008
Speculations on First Contact
After watching the movie "The Day The Earth Stood Still", I could not help but keep revisiting the topic of alien encounters with the human race in the back of my mind. The topic of alien encounters is a very frequent one in science fiction and has been brought up countless times, both in novels and movies. However, I think novels tend to fare better than most Hollywood films in depicting the realism of possible alien encounters with mankind.
Most Hollywood films such as Starwars, Star Trek, Alien, Species and Predator tend to portray aliens as having humanoid bodies, having two arms, two legs, a head and body. The usual differences between humans aliens in such movies are the alien skin colour, number of limbs, eyes, etc. All these superficial differences reflect a lack of creativity. Even most other lifeforms on Earth such as insects and animals will look more different from humans than the aliens in the films. Or maybe the film producers want to cut costs by using human actors for the alien roles instead of creating robots or using computer animation.
The probability of any alien lifeforms resembling anything close to humans is extremely low, far lower than the probability of anyone striking the lottery consecutively for his/her entire life! Anyone who has read and understand the theory of evolution should come to this conclusion. Life on Earth is the way we know it because of eons of accumulated chance mutations which were then sieved out by natural selection so that only those best suited for the particular environment in the particular locales on Earth will thrive. The complex interplay of numerous factors in the evolutionary history of Earth is certainly not something that will likely be repeated elsewhere in the universe. As such, there is no reason to believe that life on another planet would take exactly the same evolutionary path of Earth life, even if the conditions are the same. Famed scientists Carl Sagan, Paul Davies and Richard Dawkins, as well as numerous others have written books on this topic and it is worth reading them.
The main problem why most people think aliens will look like humans or some other Earth-like creature might be due to our current narrow definition of life. Our definition of life is only based on Earth life, and is certainly not representative of life throughout the cosmos. Why must life be restricted to solid forms? It is physically sensible for alien life to manifest in other physical states such as liquid and gas. Or alien life may be non-coporeal and take on exotic forms such as being composed of pure energy or electromagnetic fields. Science fiction novels such as "2001: A Space Odyssey" by Arthur C. Clarke, "Beyond Infinity" by Gregory Benford have postulated such possibilities. Another hot favourite is that many scientist think that water is necessary for life and thus they focus their search for alien life to worlds which contain water. Water is a good solvent for many inorganic substances and has high heat capacity which allows the stabilization of temperature within a relative small range, as well as other properties which make it suitable for Earth life. Water may be necessary for Earth life, but why must this criteria apply to aliens too? There are other solvents which can dissolve many substances as well. It is high time we re-look at our current definition of life and update it, before we miss recognizing alien life in future space exploration missions.
Another point to consider is that of collective consciousness. Aliens could also behave more like a hive than as separate individuals. As such, any attempt to communicate with them may prove even more difficult, due to the different ways of thinking. Imagine what would a person say to an ant or termite hive. I suppose the natural tendency for humans is to look for the leaders in the alien race, but a hive has no leaders; the queen ant or termite does not give instructions to the other ants, each individual ant merely carry out its own job. When each eat follows its own simple set of 'instinctive instructions', the self-organised collective behaviour of an entire ant colony can be markedly different from that of the individual ant itself. Clearly, a single ant or termite may not be as intelligent as a human (then again it depends on our definition of intelligence), but an entire ant or termite hive is far from stupid. Just look at the engineering marvels such as 5 meter tall termites hives which African mound termites are capable of building. Hives follow a bottoms-up approach, in contrast to our usual top-down approach.
As a class 0 civilization, chances are that a more advanced civilization will make contact with us rather than the other way round. Furthermore, we have only started exploring space in the last few decades, and the cosmos being such a unimaginably huge space, it will probably take us eons to find signs of alien life, if there is any. Given that the universe is around 17 billion years old, it is plausible that there are much older and advanced civilizations out there among the stars other than ours. And they would probably have reached class 3 or even 4 if they can reach us on Earth. From the history of mankind, every time a more advanced civilization makes contact with a less advanced one, it almost always resulted in a war of civilizations with the more advanced one triumphing. The same may or may not occur with our contact with extra-terrestrial intelligences. We do not know yet. Even if the aliens came here with no intention of harm, I think the result would still very much turn out to be a war, due to the territorial nature of humans, a behavioral relict of our evolutionary past. We would probably be the first to attack the aliens. This is where the film " The Day The Earth Stood Still" is probably right. Perhaps precisely because of this, the aliens have kept themselves invisible from us on purpose, assuming that they exist and are benevolent. This is just one of the many theories behind the Fermi Paradox.
(I will probably write an article on the Fermi Paradox in the future. I think I shall stop here for now, I could go on non-stop on the topic of aliens.)
Most Hollywood films such as Starwars, Star Trek, Alien, Species and Predator tend to portray aliens as having humanoid bodies, having two arms, two legs, a head and body. The usual differences between humans aliens in such movies are the alien skin colour, number of limbs, eyes, etc. All these superficial differences reflect a lack of creativity. Even most other lifeforms on Earth such as insects and animals will look more different from humans than the aliens in the films. Or maybe the film producers want to cut costs by using human actors for the alien roles instead of creating robots or using computer animation.
The probability of any alien lifeforms resembling anything close to humans is extremely low, far lower than the probability of anyone striking the lottery consecutively for his/her entire life! Anyone who has read and understand the theory of evolution should come to this conclusion. Life on Earth is the way we know it because of eons of accumulated chance mutations which were then sieved out by natural selection so that only those best suited for the particular environment in the particular locales on Earth will thrive. The complex interplay of numerous factors in the evolutionary history of Earth is certainly not something that will likely be repeated elsewhere in the universe. As such, there is no reason to believe that life on another planet would take exactly the same evolutionary path of Earth life, even if the conditions are the same. Famed scientists Carl Sagan, Paul Davies and Richard Dawkins, as well as numerous others have written books on this topic and it is worth reading them.
The main problem why most people think aliens will look like humans or some other Earth-like creature might be due to our current narrow definition of life. Our definition of life is only based on Earth life, and is certainly not representative of life throughout the cosmos. Why must life be restricted to solid forms? It is physically sensible for alien life to manifest in other physical states such as liquid and gas. Or alien life may be non-coporeal and take on exotic forms such as being composed of pure energy or electromagnetic fields. Science fiction novels such as "2001: A Space Odyssey" by Arthur C. Clarke, "Beyond Infinity" by Gregory Benford have postulated such possibilities. Another hot favourite is that many scientist think that water is necessary for life and thus they focus their search for alien life to worlds which contain water. Water is a good solvent for many inorganic substances and has high heat capacity which allows the stabilization of temperature within a relative small range, as well as other properties which make it suitable for Earth life. Water may be necessary for Earth life, but why must this criteria apply to aliens too? There are other solvents which can dissolve many substances as well. It is high time we re-look at our current definition of life and update it, before we miss recognizing alien life in future space exploration missions.
Another point to consider is that of collective consciousness. Aliens could also behave more like a hive than as separate individuals. As such, any attempt to communicate with them may prove even more difficult, due to the different ways of thinking. Imagine what would a person say to an ant or termite hive. I suppose the natural tendency for humans is to look for the leaders in the alien race, but a hive has no leaders; the queen ant or termite does not give instructions to the other ants, each individual ant merely carry out its own job. When each eat follows its own simple set of 'instinctive instructions', the self-organised collective behaviour of an entire ant colony can be markedly different from that of the individual ant itself. Clearly, a single ant or termite may not be as intelligent as a human (then again it depends on our definition of intelligence), but an entire ant or termite hive is far from stupid. Just look at the engineering marvels such as 5 meter tall termites hives which African mound termites are capable of building. Hives follow a bottoms-up approach, in contrast to our usual top-down approach.
As a class 0 civilization, chances are that a more advanced civilization will make contact with us rather than the other way round. Furthermore, we have only started exploring space in the last few decades, and the cosmos being such a unimaginably huge space, it will probably take us eons to find signs of alien life, if there is any. Given that the universe is around 17 billion years old, it is plausible that there are much older and advanced civilizations out there among the stars other than ours. And they would probably have reached class 3 or even 4 if they can reach us on Earth. From the history of mankind, every time a more advanced civilization makes contact with a less advanced one, it almost always resulted in a war of civilizations with the more advanced one triumphing. The same may or may not occur with our contact with extra-terrestrial intelligences. We do not know yet. Even if the aliens came here with no intention of harm, I think the result would still very much turn out to be a war, due to the territorial nature of humans, a behavioral relict of our evolutionary past. We would probably be the first to attack the aliens. This is where the film " The Day The Earth Stood Still" is probably right. Perhaps precisely because of this, the aliens have kept themselves invisible from us on purpose, assuming that they exist and are benevolent. This is just one of the many theories behind the Fermi Paradox.
(I will probably write an article on the Fermi Paradox in the future. I think I shall stop here for now, I could go on non-stop on the topic of aliens.)
Thoughts will soon be secrets no more
It was reported that researchers at the ATR Computational Neuroscience Laboratories have succeeded in processing and displaying images directly from the human brain. The team has only managed to reproduce only simple images from the brain but they believe that the technology could eventually be used to figure out dreams and other secrets inside people's minds. (http://www.physorg.com/news148193433.html)
It seems like we have opened yet another Pandora's Box. The potential of technology which allows others to read people’s minds is simply mind-boggling and its potential dangers are anyone's guess. It is only a matter of time when such mind-reading devices become as ubiquitous as mobile phones. There will undoubtedly be useful applications of such technology such as in solving crime cases and creating drawings and animations directly by visualizing them in the mind. However, in such a future, personal thoughts will no longer be private anymore as our very last sanctuary of privacy is encroached upon.
Already there are companies which sell commercial brain-computer interfaces (BCI) products such as headphones, based on electro-encephalogram (EEG) technology. Such devices allow the user to control the computer using their thoughts alone; they could control the cursor on the monitor screen, a computer game character or even a robot in the real world. Such technology will make it possible for people who have lost their limbs or wheelchair bound patients to be replaced with robotic prosthetic limbs which can be controlled by their mind. In fact, there have already been patients fitted with such BCI devices such as blind people who have partially regained their sight using electrodes implanted into their visual cortex and linked to an external camera. (http://en.wikipedia.org/wiki/Brain-computer_interface) With the aid of BCI devices, doctors will be able to perform surgeries with better accuracy for longer hours with less physical fatigue from their hands, and astronauts can manipulate tools and conduct delicate experiments in space more efficiently using thought-controlled robotic arms instead of their bulky spacesuit gloves. BCI devices can also contribute a positive impact in the education arena and will enhance the learning experience for students. Uses of BCI in treatment of psychological disorders such as depression, phobias and attention-deficit disorder are also possible. Other applications include marketing uses, advertising, consumer electronics, and entertainment.
In the near future, it is highly possible that there will be groups, organizations or even governments willing to utilize such BCI devices to control others as well. Just as we can control computers and robots using our thoughts, the reverse could probably happen also. The prophetic vision of the future portrayed by the film The Matrix might not be too far-fetched after all. Initially there might be many people resisting the use of such devices for ethical or personal reasons, but the inadvertent tide of science and technology will nevertheless remain an unstoppable force. I foresee a future where even normal people would fit themselves with such BCI devices to enhance their physical and even mental abilities. This may sound repelling to some right now but it may be perfectly acceptable to people of the future. People of the past may never have thought that our generation would be so dependent on electronic devices such as computers and mobile phones, where people carry them along everywhere they go, so much so that some of these devices have become something of an extra limb or appendage to us. It is only a matter of time before mobile communications technology and even computers become available as chips which can be embedded in our brains. There will be no need to carry mobile phones or laptops then, and we will not even need to talk to communicate for our thoughts can be directly transmitted to each another. Perhaps, that is how we will achieve extra-sensory abilities such as telepathy in the future.
BCI technology, as with many other nascent technologies, is progressing at a rate too fast for comfort for many and has engendered numerous ethical issues and controversies. We live in an age of rapid technological advances and must to learn to live with the ever-changing technologies that arise continuously. Technology is a double-edged sword. Will we lose our sense of identity and become mindless cyborgs immersed in the virtual world controlled by others or computers or will we be able to utilize and maintain control over technology for the greater good of mankind in our quest to achieve utopia?
Tuesday, September 30, 2008
F1 - Frivolous Number 1?
With the recent hype surrounding the highly successful staging of the first ever Formula 1 night race in Singapore, it might seem a little inappropriate for me to label F1 races in general as frivolous. Nevertheless, the environmental impact of F1 races is understated and given insufficient attention in the media and I shall explain why I feel such races are frivolous.
Amid skyrocketing fuel costs and growing concerns about global warming everywhere in the world, the incongruity of wasting massive amounts of petrol on fuel-guzzling race cars for Formula 1 races is glaringly imprudent. It was reported in the Straits Times that a F1 team typically uses around 200,000 litres of petrol per season. Personally, I feel that this is a vast wastage of our rapidly declining reserves of oil. Instead of squandering away this important non-renewable resource on races for entertainment, we should save it for more worthy uses such as transportation, power generation and as raw materials for the petrochemical industry for the production of plastic materials.
F1 races are also widely known for its large numbers of affluent fans, many of them being millionaires and billionaires. It probably does not come as a surprise that the affluent would enjoy extravagant leisure activities like F1 races, for it is a reflection of their spending habits. However, for the majority of us, there is no compelling reason why we should support such a profligate sport.
While it is true from the economic viewpoint that staging F1 races is a boon to the host country in terms of global publicity of the city and increasing tourist arrivals and spending, we should not just be concerned about raking in revenues and relegate environmental concerns aside. As fellow inhabitants of Earth, it is time we exercise prudence in managing our resources and do away with unnecessary and prodigal entertainment activities such as F1 races which do more harm than good to our planet with their high carbon footprint, no matter how appealing or economically viable they may be. There are many other ways to generate revenue which are environmentally sustainable. One may argue that the F1 race has helped to portray Singapore as a more vibrant city, but is it the only way and at what cost? If Singapore is to showcase itself as an example of sustainable development and a green country, we must place more importance on adopting green policies and walking the talk. We have to decide what is it that we really want to portray ourselves as to the rest of the world.
Amid skyrocketing fuel costs and growing concerns about global warming everywhere in the world, the incongruity of wasting massive amounts of petrol on fuel-guzzling race cars for Formula 1 races is glaringly imprudent. It was reported in the Straits Times that a F1 team typically uses around 200,000 litres of petrol per season. Personally, I feel that this is a vast wastage of our rapidly declining reserves of oil. Instead of squandering away this important non-renewable resource on races for entertainment, we should save it for more worthy uses such as transportation, power generation and as raw materials for the petrochemical industry for the production of plastic materials.
F1 races are also widely known for its large numbers of affluent fans, many of them being millionaires and billionaires. It probably does not come as a surprise that the affluent would enjoy extravagant leisure activities like F1 races, for it is a reflection of their spending habits. However, for the majority of us, there is no compelling reason why we should support such a profligate sport.
While it is true from the economic viewpoint that staging F1 races is a boon to the host country in terms of global publicity of the city and increasing tourist arrivals and spending, we should not just be concerned about raking in revenues and relegate environmental concerns aside. As fellow inhabitants of Earth, it is time we exercise prudence in managing our resources and do away with unnecessary and prodigal entertainment activities such as F1 races which do more harm than good to our planet with their high carbon footprint, no matter how appealing or economically viable they may be. There are many other ways to generate revenue which are environmentally sustainable. One may argue that the F1 race has helped to portray Singapore as a more vibrant city, but is it the only way and at what cost? If Singapore is to showcase itself as an example of sustainable development and a green country, we must place more importance on adopting green policies and walking the talk. We have to decide what is it that we really want to portray ourselves as to the rest of the world.
Sunday, July 20, 2008
Nepal Holiday Trip
After spending 10 days in Nepal with my parents for holidays, I arrived back in Singapore on the 19th of July. Instead of writing my travel experience in the usual journal format, I decided to spilt this post into different sections - cityscape, scenery, transportation system, food, culture, people and others.
Cityscape:
Kathmandu, the capital of Nepal, is a historical city. At around 1400m above sea level, Kathmandu is filled with endless rows of 2-3 stories shophouses, some of them more than 100 years old, unlike the jungle of towering skyscrapers that we are see so often in Singapore or other metropolitan cities, In fact I haven't seen any building taller than 10 stories apart from a tower, which according our tour guide is the tallest structure in Kathmandu. The cityscape probably resembles Singapore in the 1960s. Crooked windows and huge prominent cracks in some of these surviving old buildings are scars of the destruction of a devastating earthquake about 70 years ago (if I remember what my guide said correctly). Peering out from her exquisitely carved wooden window which seemed on the verge of giving way, an old lady watched us strolling through the streets of the city, seemingly nonchalant about the danger of living in such a dilapidated building. It was definitely to my surprise that such buildings were still inhabited. The people continue to do so because they simply cannot afford a better place.
(Above: Patan Dubar Square)
Transportation System:
I think the road conditions in Nepal are rather similar to that in India. You can see cows walking and sitting in the middle of roads and vehicles are expected to give way to them as they are considered sacred in the Hindu religion, which comprises around 80% of the population. The drivers in Nepal seem to have a penchant of sounding the horn, as frequent as every 5 seconds, and their horns even have melodies, like the sound of trumpets. Given the chaotic traffic conditions where motorists weave in and out of lanes ever so frequently even in narrow 2-way lanes, coupled with the fact that animals and people also walk on the roads, such incessant horning is understandable. Nevertheless sometimes I wonder perhaps the sounding of the horn is a form of greeting by cheeky drivers. Traveling on the roads by vehicle can be quite a bumpy ride as not all the roads are tarred or properly maintained, with potholes and rocks all over the roads, especially the mountain roads.
Strikes are also very common in Nepal and I was 'lucky' enough to experience the transportation strikes first-hand. Our tour van was caught in a massive traffic jam about 3km long and after waiting for around 3 hours, we decided to haul our luggage and walk on foot. At the site of the blockade by the protesters, the cameraman of a television crew filmed us dragging our luggage amid stares by onlookers, protesters and the police. Not long after we passed the blockade by foot, the strike ended, leading me to wonder if the sight of tourists being affected by the strike caused the protestors to relent. For those who do not know, the tourism industry is one of the largest economic sector in Nepal. Thus, it is of utmost importance for the Nepalese to ensure a quality experience for the tourists during their stay.
(Above: The crowd of protesters marching off)
(Above: Me dragging my luggage)
Scenery:
(Above: Hilly slopes and rice fields in Nagarkot)
We took the Yeti Airlines Everest Flight on 13/07/08. The view of the Himalayan mountain ranges is breath-taking.
(Above: Takeoff from Kathmandu Airport for the Everest Flight on board Yeti Air)
(Above: Picturesque view of the Himalayan ranges)
(Below: A slide show of the pictures taken from the window and cockpit of the plane. The mountains in the pictures are actually larger than they seem as some parts of the mountains are covered by cloud, so you can only see the peaks clearly, much like icebergs.)
Food:
Culture: The traditional Nepalese food is shown in the first picture. Luckily, we also had other types of food in Nepal apart from the usual dahl and chapati which is not really suited for my taste buds.
There are more than 70 different ethnic groups in Nepal, each with its own culture and traditions. My family and I were lucky to witness and participate in a Nepali wedding ceremony in one of the villages en route to one of our destinations.
(Above: The wedding ceremony site)
People:
Most of the Nepalese people that I encountered are friendly and would greet tourists with 'Namaste'. We were lucky to have a very friendly, helpful and experienced tour guide, Mr Jeevan.
Others:
Below is a video clip of an ayurvedic 'singing' bowl, so called because it resonates after being hit or rubbed with a wooden stick wrapped with leather (shown in the video). In the video, you can see the water spraying about at four sides along the circumference in the bowl and rotates with the encircling motion of the stick. My guess is that the phenomenon is caused by standing waves in the water created due to the vibrations in the bowl. The four sides from which the water spray originate would correspond to the anti-nodes, and the calm regions are the nodes. The person explaining the use of the ayurvedic bowl is my tour guide, Mr Jeevan.
We got cheated by a group of snake charmers in the streets of Pokhara when we took photos and a video of them, unaware of the fact that we have to pay them $4 for just a few seconds of video. Luckily our tour guide stepped in to handle the situation so we ended up paying $1.
Wednesday, July 09, 2008
The Hedonic Treadmill
I believe most people want to be rich, strive for fame, status and money. It may not be their intrinsic desire to do so, but rather a result of societal, parental and peer pressure. Nevertheless, a life based on the ceaseless acquisition of material possessions, wealth and accomplishments is not the answer to everlasting happiness. This is explained in a theory called the 'hedonic treadmill', a term coined by Philip Brickman and Donald Campbell.
So what is the hedonic treadmill? It is an analogy of someone running on treadmill to illustrate the point that we need to keep striving in order to maintain the same level of happiness, akin to someone running at the same speed just to maintain the same position on a treadmill. If we want to increase our happiness, we need to strive even harder. Psychology researchers have found that the level of happiness of lottery winners increased initially but returned to their original levels quickly. The reverse is also true - the level of happiness of those recently handicapped fell initially but climbed back to original levels subsequently.
"In all of these situations, despite a massive shift in standard of living or achievement of major life goals, after a short period of time the life-satisfaction levels return to normal. Despite the fact that external forces are constantly changing our life goals, happiness for most people is a relatively constant state. Regardless of how good things get, we'll always report about the same level of happiness. It is believed that the baseline of an individual's happiness is at least partially genetic. For example, identical twins are usually equally prone to depression. "-quoted from Wikipedia
So if you think that striking the lottery, snagging the President's scholarship or winning some prestigious award will give you prolonged joy, think again. But then I am sure, many people would have had first-hand experience of the effects of the hedonic treadmill themselves, yet they still strive for even more material wealth, fame or higher status in the hope of attaining the elusive everlasting happiness. As the internationally acclaimed author J.K. Rowling has aptly put it: "...personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two." (http://harvardmagazine.com/commencement/the-fringe-benefits-failure-the-importance-imagination)
I have had relatives and friends asking me why I did not choose to study medicine or some other courses which more lucrative in nature. Being a doctor will allow me to save lives. Yes, it is a noble thing, but my passion still lies in Physics. Nevertheless, there are many people who wish to become doctors and lawyers not for lofty ambitions, but for the high pay. Last year, there was a spate of articles in The Straits Times which highlighted the trend of general practitioners in Singapore offering cosmetic surgery to boost their income. Plastic surgeons and cosmetic specialists earn much more than an average GP, and this explains why cosmetic courses are so hot in medical school. This merely drives home the point that many doctors are more interested in making big bucks rather than saving lives and earning less. As much as I would like to believe that people of such intellectual calibre would be enlightened enough to realise the trap of the hedonic treadmill, it is not to be. Well, maybe the fault is not theirs alone. It is not easy to overcome the strong societal, parental and peer pressure to achieve the so called 'success', which is defined shallowly in terms of monetary wealth and societal status.
Before the current financial crisis, business and finance courses in universities were all the rage given the high salaries of those working in these sectors. However, reality sunk in upon the unfolding of the Subprime Crisis and many graduates are now finding it an uphill task to get a job or even an internship. As a result, more students are now turning towards the engineering and other faculties. Several years back, there was also a sudden wave of interest in the life sciences industry after the government's exhortation that it is the 'next-big-thing'. As with all fads, the life sciences craze fizzled out some time as well. Sounds Déjà vu? My point here is that we should not just follow where the money seems to be, for it may very well turn out to be the wrong path. Neither am I advocating that one should always blindly follow one’s interest, for we have to feed our families and ourselves. Nevertheless, monetary remuneration should not be the salient and over-riding factor in determining one’s career path. A balance between pragmatism and idealism has to be struck.
When I was younger, I wanted to be a great scientist and aspired to win the Nobel prize. However, as I grew older and wiser, I realised that winning prizes is not the most important thing in life and it will only give me temporary happiness. I still wish to be a scientist, but my main aim now is to help people through science research and development, as well as through other forms of community service. I am not advocating that everyone should give up their ambitions to be bankers or superstars or even the President of United States. It is good to have aspirations, for you will then have something to work for and life becomes more meaningful. But making money and attaining status should not be the ultimate aim in life. We must exercise caution in threading the fine line between sinking into complacency and being overzealous or 'kaisu', or we would only be the ones to suffer.
So what is the hedonic treadmill? It is an analogy of someone running on treadmill to illustrate the point that we need to keep striving in order to maintain the same level of happiness, akin to someone running at the same speed just to maintain the same position on a treadmill. If we want to increase our happiness, we need to strive even harder. Psychology researchers have found that the level of happiness of lottery winners increased initially but returned to their original levels quickly. The reverse is also true - the level of happiness of those recently handicapped fell initially but climbed back to original levels subsequently.
"In all of these situations, despite a massive shift in standard of living or achievement of major life goals, after a short period of time the life-satisfaction levels return to normal. Despite the fact that external forces are constantly changing our life goals, happiness for most people is a relatively constant state. Regardless of how good things get, we'll always report about the same level of happiness. It is believed that the baseline of an individual's happiness is at least partially genetic. For example, identical twins are usually equally prone to depression. "-quoted from Wikipedia
So if you think that striking the lottery, snagging the President's scholarship or winning some prestigious award will give you prolonged joy, think again. But then I am sure, many people would have had first-hand experience of the effects of the hedonic treadmill themselves, yet they still strive for even more material wealth, fame or higher status in the hope of attaining the elusive everlasting happiness. As the internationally acclaimed author J.K. Rowling has aptly put it: "...personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two." (http://harvardmagazine.com/commencement/the-fringe-benefits-failure-the-importance-imagination)
I have had relatives and friends asking me why I did not choose to study medicine or some other courses which more lucrative in nature. Being a doctor will allow me to save lives. Yes, it is a noble thing, but my passion still lies in Physics. Nevertheless, there are many people who wish to become doctors and lawyers not for lofty ambitions, but for the high pay. Last year, there was a spate of articles in The Straits Times which highlighted the trend of general practitioners in Singapore offering cosmetic surgery to boost their income. Plastic surgeons and cosmetic specialists earn much more than an average GP, and this explains why cosmetic courses are so hot in medical school. This merely drives home the point that many doctors are more interested in making big bucks rather than saving lives and earning less. As much as I would like to believe that people of such intellectual calibre would be enlightened enough to realise the trap of the hedonic treadmill, it is not to be. Well, maybe the fault is not theirs alone. It is not easy to overcome the strong societal, parental and peer pressure to achieve the so called 'success', which is defined shallowly in terms of monetary wealth and societal status.
Before the current financial crisis, business and finance courses in universities were all the rage given the high salaries of those working in these sectors. However, reality sunk in upon the unfolding of the Subprime Crisis and many graduates are now finding it an uphill task to get a job or even an internship. As a result, more students are now turning towards the engineering and other faculties. Several years back, there was also a sudden wave of interest in the life sciences industry after the government's exhortation that it is the 'next-big-thing'. As with all fads, the life sciences craze fizzled out some time as well. Sounds Déjà vu? My point here is that we should not just follow where the money seems to be, for it may very well turn out to be the wrong path. Neither am I advocating that one should always blindly follow one’s interest, for we have to feed our families and ourselves. Nevertheless, monetary remuneration should not be the salient and over-riding factor in determining one’s career path. A balance between pragmatism and idealism has to be struck.
When I was younger, I wanted to be a great scientist and aspired to win the Nobel prize. However, as I grew older and wiser, I realised that winning prizes is not the most important thing in life and it will only give me temporary happiness. I still wish to be a scientist, but my main aim now is to help people through science research and development, as well as through other forms of community service. I am not advocating that everyone should give up their ambitions to be bankers or superstars or even the President of United States. It is good to have aspirations, for you will then have something to work for and life becomes more meaningful. But making money and attaining status should not be the ultimate aim in life. We must exercise caution in threading the fine line between sinking into complacency and being overzealous or 'kaisu', or we would only be the ones to suffer.
Tuesday, June 24, 2008
'We do not need magic to change the world'- J.K. Rowling
I was very inspired after watching J.K.Rowling's recent speech at Harvard. I highly recommend everyone to watch it. It is probably one the best inspirational speeches I have heard so far. In her address to graduating Harvard students, she touched on two themes- the importance of failure and the importance of imagination. My favourite part of her speech is this: "If you choose to use your status and influence to raise your voice on behalf of those who have no voice; if you choose to identify not only with the powerful, but with the powerless; if you retain the ability to imagine yourself into the lives of those whoso not have your advantages, then it will not only be your proud families who celebrate your existence, but thousands and millions of people whose reality you have helped transform for the better. We do not need magic to change the world, we carry all the power we need inside ourselves already: we have the power to imgaine better."
Part 1:
Part2:
Part3:
Hope you enjoyed and learned something after watching the clips. I have never read any of the Harry Potter books but now I know why J.K. Rowling is such a great writer.
"As is a tale, so is life, not how long it is, but how good it is, is what matters." -Seneca
Part 1:
Part2:
Part3:
Hope you enjoyed and learned something after watching the clips. I have never read any of the Harry Potter books but now I know why J.K. Rowling is such a great writer.
"As is a tale, so is life, not how long it is, but how good it is, is what matters." -Seneca
Thursday, June 19, 2008
My wall light has a new look!
Check out my latest design for my house wall light.
You are probably wondering why the cover looks like a truncated plastic plate. Well, it is. It looks rather austere and I decided to keep it that way as it blends in better with the colour of the wall. The original glass cover was nicer and more elegant, but my mother dropped and broke it accidentally last week while trying to chase out a lizard hiding in the cover, despite my advice to leave the lizard alone. Haha. Luckily my father was bathing at that time so he didn't know, or he would blow his top. I quickly modified a plastic plate and supplanted the broken glass cover with it before he came out from the bath room. Well, he didn't notice it for more than a week despite the prominent positioning of the wall light. Haha. Maybe I can become an interior designer. :) Anyway, my father only realized it after my mother decided to tell him what happened as she couldn't stop laughing for days. So I was wondering if we didn't tell him, he would probably never find out. My design is cool right? UNIQUE.
You are probably wondering why the cover looks like a truncated plastic plate. Well, it is. It looks rather austere and I decided to keep it that way as it blends in better with the colour of the wall. The original glass cover was nicer and more elegant, but my mother dropped and broke it accidentally last week while trying to chase out a lizard hiding in the cover, despite my advice to leave the lizard alone. Haha. Luckily my father was bathing at that time so he didn't know, or he would blow his top. I quickly modified a plastic plate and supplanted the broken glass cover with it before he came out from the bath room. Well, he didn't notice it for more than a week despite the prominent positioning of the wall light. Haha. Maybe I can become an interior designer. :) Anyway, my father only realized it after my mother decided to tell him what happened as she couldn't stop laughing for days. So I was wondering if we didn't tell him, he would probably never find out. My design is cool right? UNIQUE.
Wednesday, May 28, 2008
Artificial Gravity in Space?
Artificial gravity has been portrayed in many sci-fi movies and novels by the use of giant rotating cylinder-shaped spaceships to generate acceleration. According to Einstein, acceleration is equivalent to gravity. However, I have been wondering what happens when a person jumps in a rotating spaceship. Thus, I decided to do a little thought experiment.
Assume we have a giant cylinder-shaped spaceship that rotates at a constant angular velocity w. A person standing inside the spaceship will experience centripetal acceleration directed towards the axis of rotation (or the centre of the spaceship in that particular cross-sectional frame) and the resulting normal force acting on him/her will cause a sensation of gravity. However, if the person jumps in the direction towards the centre, he/she will lift off the surface with 2 velocities components- the tangential velocity and initial velocity towards the center. The resultant velocity can be calculated and he/she will 'fly' in a straight line towards the inner surface of the spaceship at an angle as seen in the video and end up landing at a different spot from where he/she lifted off. This is because once the person is off the surface, there is no longer any resultant force acting on him/her (neglect air resistance), unlike on Earth where gravity continues to act even when you are airborne.
Assume we have a giant cylinder-shaped spaceship that rotates at a constant angular velocity w. A person standing inside the spaceship will experience centripetal acceleration directed towards the axis of rotation (or the centre of the spaceship in that particular cross-sectional frame) and the resulting normal force acting on him/her will cause a sensation of gravity. However, if the person jumps in the direction towards the centre, he/she will lift off the surface with 2 velocities components- the tangential velocity and initial velocity towards the center. The resultant velocity can be calculated and he/she will 'fly' in a straight line towards the inner surface of the spaceship at an angle as seen in the video and end up landing at a different spot from where he/she lifted off. This is because once the person is off the surface, there is no longer any resultant force acting on him/her (neglect air resistance), unlike on Earth where gravity continues to act even when you are airborne.
(PS: Does anyone know how to upload flash animation files onto blogger? I had to convert the flash file to .avi format which is much larger in file size)
Applying the same reasoning, objects 'falling' in a rotating spaceship will not 'fall' in a straight vertical line but will end up hitting the ground at some horizontal distance away from the point at which is starts 'falling'. This apparent curved motion of objects is called Coriolis effect. In this respect, artificial gravity is different from real gravity and may lead to many problems living in space.
Prolonged exposure to weightlessness can cause health problems in astronauts such as loss of bone mass, muscle atrophy, dehydration, anemia and weakened immunity, among others. Such adverse effects can be countered by rigorous exercise or by inducing gravity. Currently, a significant amount of time on exercising by astronauts while on space missions. This is not very economical as it results in less time for conducting experiments. In the future when people live in space colonies, we cannot expect everyone to spend so much time exercising. Thus it is of utmost importance to find a way to create artificial gravity that is as close to the real thing as possible. Currently, the only way to create real gravity is to use mass. In order to create 1g, we will need the mass of the Earth, so clearly that is not a viable option for space missions. So for now, we will just have to stick to the idea of large rotating spaceships and put up with large Coriolis forces.
Monday, May 19, 2008
Happy Vesak Day!
Wish everyone a very happy Vesak Day! While we celebrate the birth and enlightenment of Buddha here in Singapore, we should not forget about others who are suffering. Let us pray for the victims of the two recent major natural disasters- the Sichuan earthquake and cyclone Nargis. Amidst our relatively sheltered life in Singapore, which is free from natural disasters, it is easy to forget that there are so many people in other parts of the world whose lives have been wrecked by such calamities and their daily existence have become a ceaseless struggle. It is heartening to know that countries and people all over the world have provided humanitarian aid and monetary donations to the afflicted countries. While we may not be able to help out with the relief efforts, we can donate and pray for the victims. Let them know that the world is still full of compassion.
Wednesday, May 14, 2008
Do electrons really spin and do quarks really have colour?
Do electrons really spin and are quarks really coloured? Well, the answers to both are no. Why then do scientists come up with such terms? To deliberately obfuscate people? I do not think so. The limitations of human languages in describing the quantum world have made it difficult for us to assign appropriate words to describe properties of subatomic particles. As such, analogies such as spin and colour are used to create a more intuitive understanding of reality. What do scientists mean by the spin of electrons and colours of quarks then?
Before I explain electron spin, imagine a classical spinning top. If you look at the spinning top from the top or bottom, you will see that it is either spinning clockwise or anti-clockwise. If you view it from the side, you will not observe any spin. (Note: Spin is defined to be the rotation of an object about an axis which passes through it.) In order to understand the spin of an electron, we have to move away from the classical notion of spin. The electron is actually not a point-like particle but rather, it is a probability cloud. The spin of an electron is just a name used to describe one of its properties. This electron spin is a result of its intrinsic angular momentum. If you view the electron about any axis in 3-dimensional space, you will always observe either a clockwise or anti-clockwise spin, and the value of the spin is defined to be 1/2. It is difficult to imagine how this can happen, for the quantum world is totally different and exists on different scales from the macroscopic world on which we live in. It is only natural then that we will have trouble visualizing the world of the subatomic, just as a bacterium would have much difficulty in comprehending the human world.
Now let's move on to quarks. Quarks are the constituent particles of hadrons (a class of subatomic particles which interact via the strong force) and come in six different flavours called, 'up', 'down', 'top', 'bottom', 'strange' and 'charm'. These are not names of some newfangled ice-cream flavours but are merely names of different types of quarks. Apart from flavours, quarks also posses another property called colour and come in red, blue and green. A hadron is colour neutral as it consists of three quarks from each of the colours, just like mixing the three primary colours of light produces white light. In a meson, there are two quarks of similar colour but each being the matter and anti-matter counterpart of each other.
Quarks themselves are not coloured in the classical sense in which we see macroscopic objects in different colours. We can see and perceive colour from macroscopic objects because incident light or photons on the objects are absorbed by electrons in the atoms and then re-emitted or transmitted to our eyes. In the simplified model of an atom, bound electrons 'orbit' the nuclei in shells of fixed distances from the nuclei. (Note that electrons are actually probability clouds which flow around the nuclei of atoms and this flow is called a probability current.) Whenever a photon with the right amount of energy (corresponding to the gap between two energy levels of an atom) is incident on a bound electron, it will be absorbed by the electron and cause the latter to become ‘excited’ and jump to a higher orbit. The excited electron subsequently re-emits a photon as it falls back to a lower state. (Note that the excited electron may return to the ground in a single or multi-step process.) Since different atoms and molecules, and thus different objects, have different gaps in energy levels, they reflect different frequencies of visible light, resulting in our perception of colour. Anything smaller than an atom will not possess colour in the classical sense. Hence, it makes no sense to ask how quarks look like.
In trying to understand and describe the quantum world, we are inevitably bogged down by our limited sensory perceptions, preconceived notions of the world and semantic limitations. Nevertheless, we have come very far in building a scientific model of the world since the dawn of civilization. Will we ever be able to fully comprehend the world? Some say that it is impossible for mere human minds which are constrained by the limitations imposed by our physical senses to comprehend the universe. I personally think that Science alone will not be able to fully explain every aspect of reality. However, many people have been wrong countless times in predicting the limits of Science. Thus, only time will tell.
Wednesday, April 02, 2008
Complexity Theory
In my previous post, I mentioned about complexity theory. It is actually a branch of science which explores how simple instructions governing individual units of a system consisting of a large number of these units can give rise to complex behaviours without the need for a leader or intelligent being in control. Examples of complex systems include schools of fishes swimming in unison, flocks of birds flying in formation, the weather, formation of hurricanes, the human brain, the stock market, and even the behaviour of liquid water. Another thing about complex systems is that they possess properties that cannot be predicted from the individual properties of their constituent units, just like you cannot predict the properties of macroscopic water such its boiling point or density merely by studying the individual properties of the water molecules.
Check out the links below for more information:
http://en.wikipedia.org/wiki/Complex_system
http://www.pbs.org/wgbh/nova/sciencenow/3410/03.html
http://complexity.orconhosting.net.nz/intro.html
Check out the links below for more information:
http://en.wikipedia.org/wiki/Complex_system
http://www.pbs.org/wgbh/nova/sciencenow/3410/03.html
http://complexity.orconhosting.net.nz/intro.html
Tuesday, April 01, 2008
Book Review: Climbing Mount Improbable - Richard Dawkins
Ever wondered how the theory of evolution could explain the existance of the dazzling array of complex biological creatures on Earth? If your anwer is yes, then you should read this book. Apart from explaining that, Richard Dawkins also tackled the favourite target of creationists - the eye.
Creationists believe that only an intelligent being could have created something as complex as the eye. The book goes to great length to explain how complex structures like eyes can be a product of the forces of mindless random mutations and natural selection, thereby removing the need for intelligent design. In fact, eyes evolved no less than 40 times independently and taking only around 500 thousand years in some cases, which is really just a 'blink of the eye' in terms of geological time. What most people fail to realize about the theory of evolution is that complex biological structures can be evolved through a series of gradual steps; they do not have to be evolved in a single huge step. Richard Dawkins used the analogy of climbing a mountain to explain this: when faced with an insurmountable clift, one can find another longer route which has gentler slopes and is easier to climb, just as evolution tends to seek these gentler slopes towards increasing complexity. Thus, seemingly impossible structures can arise in nature without the intervention of any intelligent being. Do read up on complexity theory if you wish to find out more about how complex systems can arise out of numerous simple interacting sub-units.
Even if you already believe in the theory of evolution, this book still has much to offer you. It provides deeper insights into how and why different creatures took on separate evolutionary paths and evolved different body structures to serve the same or different purposes. For instance, bats use echolocation for navigation whereas most other creatures rely on sight. It also explains why only some creatures evolved wings for flight but not others. It is actually due to the practicalities of the required wingspan, speed of flapping, stresses on the wing material, etc, that will be needed to lift the weight of the creature. Richard Dawkins also mentioned about the high level of complexity that exists in creatures with five-fold or higher symmetry such as the Radiolarian and starfish. There are plenty of other interesting stuff in the book, not to mention the numerous pictures in it.
Creationists believe that only an intelligent being could have created something as complex as the eye. The book goes to great length to explain how complex structures like eyes can be a product of the forces of mindless random mutations and natural selection, thereby removing the need for intelligent design. In fact, eyes evolved no less than 40 times independently and taking only around 500 thousand years in some cases, which is really just a 'blink of the eye' in terms of geological time. What most people fail to realize about the theory of evolution is that complex biological structures can be evolved through a series of gradual steps; they do not have to be evolved in a single huge step. Richard Dawkins used the analogy of climbing a mountain to explain this: when faced with an insurmountable clift, one can find another longer route which has gentler slopes and is easier to climb, just as evolution tends to seek these gentler slopes towards increasing complexity. Thus, seemingly impossible structures can arise in nature without the intervention of any intelligent being. Do read up on complexity theory if you wish to find out more about how complex systems can arise out of numerous simple interacting sub-units.
Even if you already believe in the theory of evolution, this book still has much to offer you. It provides deeper insights into how and why different creatures took on separate evolutionary paths and evolved different body structures to serve the same or different purposes. For instance, bats use echolocation for navigation whereas most other creatures rely on sight. It also explains why only some creatures evolved wings for flight but not others. It is actually due to the practicalities of the required wingspan, speed of flapping, stresses on the wing material, etc, that will be needed to lift the weight of the creature. Richard Dawkins also mentioned about the high level of complexity that exists in creatures with five-fold or higher symmetry such as the Radiolarian and starfish. There are plenty of other interesting stuff in the book, not to mention the numerous pictures in it.
Radiolarian Haeckel Polycyttaria (from Wikipedia)
Thursday, March 27, 2008
Arthur C. Clarke’s Final Odyssey
It was indeed a loss to the world that one of the world's most visionary and renowned science fiction author has passed away. Arthur C. Clarke, one of my favourite sci-fi authors, passed away on 19 March 2008 at the age of 90. I started reading his books when I was in secondary 1 and it was through his vastly imaginative and thought-provoking stories that cemented my love for sci-fi. Contrary to general sentiments, sci-fi is not just totally nonsensical ideas. Rather, most ideas in sci-fi stories are based on scientific theories (especially those sci-fi stories written by scientists or engineers). Contemporary sci-fi also explores a variety of issues ranging from philosophy to psychology and even politics. It is no mean feat to reconcile the schism between mainstream literature and hard core science and to bring across scientific ideas to the masses in an accessible manner through stories. Few can claim to be able to do this as skilfully as the late Arthur C. Clarke. Indeed stories have been around since the dawn of civilization and have tremendous power in disseminating ideas and influencing the masses. What better way to spread scientific ideas and stretch the imagination of human minds than through stories? Herein underscores the undervalued importance of science fiction in the modern society.
Arthur C Clarke wrote 100 books, more than 1,000 short stories and essays over 60 years. Some of his best-selling novels include ‘Childhood's End’ (which is my personal favourite), 2001: A Space Odyssey (The Oscar-nominated movie of the same title was based on this book), ‘Rendezvous with Rama’ and ‘Fountains of Paradise’. Trained in physics and mathematics, Sir Arthur also wrote many books and essays of non-fiction on space travel, communication technologies, underwater exploration and future studies.
It is widely believed that Clarke's most important scientific contribution is his idea of using geostationary satellites as ideal telecommunications relays. He wrote a paper titled ‘Extra-Terrestrial Relays — Can Rocket Stations Give Worldwide Radio Coverage?’, which was published in Wireless World in October 1945 delineating how the concept of geostationary orbit can be put to practical use. The geostationary orbit is now sometimes known as the Clarke Orbit or the Clarke Belt in his honour. This shows why we should pay attention to sci-fi writers, for we never know if some wacky idea which is deemed impossible today will be possible and useful tomorrow. Jules Verne’s idea of an underwater submersible ages before the development of the first submarine is another example of the prophetic power of science fiction. Indeed, Arthur C. Clarke once said that ‘in order to find out the limits of the possible, we have to venture a little way past them into the impossible’. Never has the words of someone had such a profound impact on my thinking than those of Arthur C. Clarke’s.
Before his death, Clarke said: "I’ve had a diverse career as a writer, underwater explorer, space promoter and science populariser. Of all these, I want to be remembered most as a writer – one who entertained readers, and, hopefully, stretched their imagination as well." Well, he has undoubtedly stretched my imagination and I believe that of many other people too.
“It may be that the old astrologers had the truth exactly reversed, when they believed that the stars controlled the destinies of men. The time may come when men control the destinies of stars.” -Arthur C. Clarke, First on the Moon, 1970
As a leading proponent for space travel and exploration, Clarke has also chaired several space advocacy organizations. I do believe the day will come when mankind will advance into a stage 2 or even stage 3 civilization and alter the destinies of stars as Clarke prophesized.
Arthur C. Clarke’s even came up with 3 ‘laws’ of prediction which he called it Clarke’s 3 Laws:
1. When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
2. The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
3. Any sufficiently advanced technology is indistinguishable from magic.
As a fitting eulogy, I decided to name the title of this article ‘Arthur C. Clarke’s Final Odyssey’ after one of his books in the Space Odyssey series, ‘3001: Final Odyssey’. I highly recommend you to read his novels and be inspired by one of the greatest masters of sci-fi. Arthur C. Clarke may no longer exist on this world, but his legacy will forever live on in his books and be immortalized in the minds of his fans.
My recommendations:
• Childhood's End
• The Light of Other Days
• 2001: A Space Odyssey
• 2010: Odyssey Two
• 2061: Odyssey Three
• 3001: Final Odyssey
• Rendezvous with Rama
• Against The Fall Of Night
• Time's Eye
• Sunstorm
Arthur C Clarke wrote 100 books, more than 1,000 short stories and essays over 60 years. Some of his best-selling novels include ‘Childhood's End’ (which is my personal favourite), 2001: A Space Odyssey (The Oscar-nominated movie of the same title was based on this book), ‘Rendezvous with Rama’ and ‘Fountains of Paradise’. Trained in physics and mathematics, Sir Arthur also wrote many books and essays of non-fiction on space travel, communication technologies, underwater exploration and future studies.
It is widely believed that Clarke's most important scientific contribution is his idea of using geostationary satellites as ideal telecommunications relays. He wrote a paper titled ‘Extra-Terrestrial Relays — Can Rocket Stations Give Worldwide Radio Coverage?’, which was published in Wireless World in October 1945 delineating how the concept of geostationary orbit can be put to practical use. The geostationary orbit is now sometimes known as the Clarke Orbit or the Clarke Belt in his honour. This shows why we should pay attention to sci-fi writers, for we never know if some wacky idea which is deemed impossible today will be possible and useful tomorrow. Jules Verne’s idea of an underwater submersible ages before the development of the first submarine is another example of the prophetic power of science fiction. Indeed, Arthur C. Clarke once said that ‘in order to find out the limits of the possible, we have to venture a little way past them into the impossible’. Never has the words of someone had such a profound impact on my thinking than those of Arthur C. Clarke’s.
Before his death, Clarke said: "I’ve had a diverse career as a writer, underwater explorer, space promoter and science populariser. Of all these, I want to be remembered most as a writer – one who entertained readers, and, hopefully, stretched their imagination as well." Well, he has undoubtedly stretched my imagination and I believe that of many other people too.
“It may be that the old astrologers had the truth exactly reversed, when they believed that the stars controlled the destinies of men. The time may come when men control the destinies of stars.” -Arthur C. Clarke, First on the Moon, 1970
As a leading proponent for space travel and exploration, Clarke has also chaired several space advocacy organizations. I do believe the day will come when mankind will advance into a stage 2 or even stage 3 civilization and alter the destinies of stars as Clarke prophesized.
Arthur C. Clarke’s even came up with 3 ‘laws’ of prediction which he called it Clarke’s 3 Laws:
1. When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
2. The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
3. Any sufficiently advanced technology is indistinguishable from magic.
As a fitting eulogy, I decided to name the title of this article ‘Arthur C. Clarke’s Final Odyssey’ after one of his books in the Space Odyssey series, ‘3001: Final Odyssey’. I highly recommend you to read his novels and be inspired by one of the greatest masters of sci-fi. Arthur C. Clarke may no longer exist on this world, but his legacy will forever live on in his books and be immortalized in the minds of his fans.
My recommendations:
• Childhood's End
• The Light of Other Days
• 2001: A Space Odyssey
• 2010: Odyssey Two
• 2061: Odyssey Three
• 3001: Final Odyssey
• Rendezvous with Rama
• Against The Fall Of Night
• Time's Eye
• Sunstorm
Thursday, February 21, 2008
Singaporeans An Ungracious Lot? Think Again.
There have been numerous articles on newspaper forums written by foreigners complaining about Singaporeans being ungracious. Among their usual complains include people not giving up their seats to the elderly or pregnant ladies when using public transport, ‘reservation’ of seats at foodcourts and hawker centres using packets of tissue paper, the way some people treat their maids and rushing to board trains during rush hours. Foreigners are quick to point their fingers at Singaporeans but I am sure in many such instances the culprits are not locals. According to the demographic statistics for 2006 (http://www.singstat.gov.sg/pubn/reference/yos/statsT-demography.pdf), about one fifth of our nation’s population comprises of foreigners. Most of these foreigners hail from Malaysia, China, Myanmar, Vietnam, and other South-east Asian countries, so at first glance one might not be able to tell them apart from the locals. It is only when they speak do they reveal their identity through their accent. However, a foreigner might not be able to discern between the local and foreign accents and might end up mistaking another foreigner for a local. Most foreigners have a tendency to assume that almost everyone they see in Singapore is a Singaporean but it is clear that given our high percentage of foreigners living and working here, this line of thinking is fallacious.
While there are indeed Singaporeans who are guilty of being ungracious, making sweeping generalizations and pushing all the blame to us is illogical. Through my own personal experience, I have encountered many incidents whereby foreigners here behaved in a manner falling short of civic-mindedness too, such as spitting on pavements for pedestrians, blocking entrances to trains, cutting queues, littering, talking loudly in public places like the libraries, etc. There are also many people in other countries who behave ungraciously so I see no reason for foreigners to single Singaporeans out. My message to foreigners in Singapore is this: The next time you see someone behaving in an uncivilized manner, do not jump to the conclusion that he/she is a Singaporean. He/she may very well be one of you or a permanent resident.
While there are indeed Singaporeans who are guilty of being ungracious, making sweeping generalizations and pushing all the blame to us is illogical. Through my own personal experience, I have encountered many incidents whereby foreigners here behaved in a manner falling short of civic-mindedness too, such as spitting on pavements for pedestrians, blocking entrances to trains, cutting queues, littering, talking loudly in public places like the libraries, etc. There are also many people in other countries who behave ungraciously so I see no reason for foreigners to single Singaporeans out. My message to foreigners in Singapore is this: The next time you see someone behaving in an uncivilized manner, do not jump to the conclusion that he/she is a Singaporean. He/she may very well be one of you or a permanent resident.
Saturday, October 20, 2007
Hip hop song by 蔡淳佳 & 陈伟联?
I was pleasantly surprised when I heard the interesting new song 《犯错》by 蔡淳佳 & 陈伟联. These two Singaporean singers, better known for singing more traditional chinese pop and oldies, were the least of all singers who I would expect to sing a hip hop song together. 犯错 gives the two singers a refreshing new image and is testimony to the need for singers to keep up with times. While the catchy song was a good effort, I still prefer the two singers singing their classic melodious tunes like 陪我看日出 (by 蔡淳佳) and 触摸 (by 陈伟联), which is undeniably their forte.
Monday, October 15, 2007
Blog Action Day poem
Today is Blog Action Day. It is an event in which bloggers all over the world shall post something related to the environment on this day in a bid to raise awareness of environmental issues. To find out more about Blog Action Day, visit http://blogactionday.org/
Autumn’s coming to an end
The leaves have begun to turn yellow
Before long the chilly Northern winds have come
Presaging the arrival of the impatient winter
But the winter has come too soon, too abrupt
Something has gone wrong with the weather
The time for the Migration has come again
Yet it seems only yesterday when the seagulls settled here
The hatchlings were still too young to fly
But the lake would freeze soon and only death awaits
Leaving the young and the old to their fate
The seagulls reluctantly took off to the skies
Embarking once more on a journey in search for food, warmth and breeding sites
Little did they know that it would be their last flight
The terrain has changed beyond recognition
The forests have disappeared and mountains denuded
Flying over the parched and desiccated land seemingly devoid of life
The sea came into sight much earlier than expected
The coasts and sandy beaches have all but gone
And the land mass shrunken at an incredible rate
Giving up the fight against the relentless encroaching sea
Fishes abound in the never-ending sea
It might have been a seabird’s paradise
But it was not to be
Water was everywhere but not a sip to be had
Having flown for months without rest
Yet not a piece of land in sight
Battling thirst, aching muscles and sudden violent storms
Only a handful of seagulls have survived
Even so the numbers are rapidly declining
Till there was only one last bird flying
Striving against all odds to keep the hopes of dry land alive
But her efforts proved futile
As she finally succumbed to fatigue and plunged into the abysmal sea
For my little contribution to the cause of Blog Action Day, I have penned a poem and I hope you will like it.
The Flight of the Last Seabird
Autumn’s coming to an end
The leaves have begun to turn yellow
Before long the chilly Northern winds have come
Presaging the arrival of the impatient winter
But the winter has come too soon, too abrupt
Something has gone wrong with the weather
The time for the Migration has come again
Yet it seems only yesterday when the seagulls settled here
The hatchlings were still too young to fly
But the lake would freeze soon and only death awaits
Leaving the young and the old to their fate
The seagulls reluctantly took off to the skies
Embarking once more on a journey in search for food, warmth and breeding sites
Little did they know that it would be their last flight
The terrain has changed beyond recognition
The forests have disappeared and mountains denuded
Flying over the parched and desiccated land seemingly devoid of life
The sea came into sight much earlier than expected
The coasts and sandy beaches have all but gone
And the land mass shrunken at an incredible rate
Giving up the fight against the relentless encroaching sea
Fishes abound in the never-ending sea
It might have been a seabird’s paradise
But it was not to be
Water was everywhere but not a sip to be had
Having flown for months without rest
Yet not a piece of land in sight
Battling thirst, aching muscles and sudden violent storms
Only a handful of seagulls have survived
Even so the numbers are rapidly declining
Till there was only one last bird flying
Striving against all odds to keep the hopes of dry land alive
But her efforts proved futile
As she finally succumbed to fatigue and plunged into the abysmal sea
Copyright © Ong Wei Guang
The poem illustrates a possible scenario of Earth in the future plagued by global climate changes, unpredictable violent storms, widespread desertification and most prominently rising sea levels which inundate vast swathes of land. The plight of the seagulls trying in vain to find suitable land to rest during their migration highlights the possibility of mass extinction of numerous species of plants and animals, due to the destruction of natural habitats caused by rising sea levels. All these could happen if global warming is left unchecked as man continues exploiting the natural resources of Earth and pumping ever-increasing copious amounts of greenhouse gases into the atmosphere without restrain.
As the concentration of greenhouse gases build up in the atmosphere, more sunlight is trapped and reflected back to the Earth’s surface, raising global temperatures and melting glaciers and polar ice caps. As more ice melts, less sunlight is reflected back into space and this result in a positive feedback cycle, accelerating global warming. While some scientist have dismissed global warming as alarmist and believe that the Earth will be able to cope with the influx of greenhouse gases caused by the activities of man, there have been increasing evidence in recent years of the manifestations of the dire consequences of global warming all over the world. The Gaia hypothesis proposes that the Earth’s biosphere is a complex non-linear dynamic system and as such, rising global temperatures could reach a certain critical tipping point after which run-away sudden cataclysmic climate changes ensue, as in the movie ‘The Day After Tomorrow’. But of course, do watch the show with a pinch of skepticism as Hollywood movies tend to exaggerate things.
As the concentration of greenhouse gases build up in the atmosphere, more sunlight is trapped and reflected back to the Earth’s surface, raising global temperatures and melting glaciers and polar ice caps. As more ice melts, less sunlight is reflected back into space and this result in a positive feedback cycle, accelerating global warming. While some scientist have dismissed global warming as alarmist and believe that the Earth will be able to cope with the influx of greenhouse gases caused by the activities of man, there have been increasing evidence in recent years of the manifestations of the dire consequences of global warming all over the world. The Gaia hypothesis proposes that the Earth’s biosphere is a complex non-linear dynamic system and as such, rising global temperatures could reach a certain critical tipping point after which run-away sudden cataclysmic climate changes ensue, as in the movie ‘The Day After Tomorrow’. But of course, do watch the show with a pinch of skepticism as Hollywood movies tend to exaggerate things.
Saturday, October 13, 2007
Back from Taiwan
Just came back from my holiday with my parents in Taiwan yesterday. It was quite an eventful trip. Our flight to Taiwan was diverted to Hong Kong halfway into the journey due to typhoon Krosa. Too bad we didn't have much time to explore Hong Kong as we reached the hotel in the evening and stayed for a night there.
After wasting a day in Hong Kong, we finally arrived in Taiwan on 7th Oct in the afternoon. On our bus journey to the hotel I spotted electric windmills along the sea coast, and that's something you can't find back in Singapore.
(That's me squatting on an egg-like stone in a ring-like rock outcropping)
Thought not as fun as I expected, my trip to Taiwan was quite an interesting and refreshing experience away from the rigours of army life.
After wasting a day in Hong Kong, we finally arrived in Taiwan on 7th Oct in the afternoon. On our bus journey to the hotel I spotted electric windmills along the sea coast, and that's something you can't find back in Singapore.
Our main purpose in visiting Taiwan was sight-seeing and it was much to my chagrin when we realized that we were unable to visit Hualien and Taroko Gorge as the roads there were destroyed by the typhoon. The tour guide told us that the best scenery in Taiwan could only be found there but well, unforeseen circumstances do happen and we just have to change our plans. In the end we spent most of our time in Taiwan travelling on the tour bus, visting night markets and temples. The night markets there are similar to the Pasa Malams in Singapore except that they are permanent and sell different stuff. The stuff there are not as cheap as I expected so I didn't buy much. Food was aplenty but I had difficulty finding food in the night market that suited my taste as they mainly sell pig's organ soup and dried squid which I don't eat. I am not so adventurous in trying out exotic food. The melange of smells in the night markets proved to be quite overwhelming to me, especially that of the smelly beancurd or known as "Chou Tou Fu" and the exhaust fumes from the numerous scooters. The crowded night markets and endless jostling of people was a nuisance to me for I dislike crowds. Walking along the streets in Taiwan can be quite dangerous and irritating as scooters and motorcycles zip pass you every few seconds haphazardly. The motorcyclists in Taiwan do not seem to make any distinction between pavements meant for pedestrians and roads. You have to be constantly on the lookout least you get knocked down. I noticed that the percentage of scooters in Taiwan is much higher than that in Singapore, probably because it is more convenient to use a scooter than a car in negotiating narrow alleys and crowded streets illegally.
Our tour bus broke down on the fourth day on the highway en route from Taichung to Taipei. Seated near the back of the bus I detected acrid fumes that smelled burning rubber and the engine made loud rattling noises. Initially I thought the tyres were on fire but it was actually the engine that was emitting those noxious and suffocating fumes. The bus driver continued driving for a few minutes before the engine died and we were left stranded along the shoulder of the highway. The driver should have stopped the bus and opened the doors immediately instead of continuing driving. After trying in vain to start the engine for more than an hour, the driver gave up and another tour bus was sent to pick us up.
Our tour bus broke down on the fourth day on the highway en route from Taichung to Taipei. Seated near the back of the bus I detected acrid fumes that smelled burning rubber and the engine made loud rattling noises. Initially I thought the tyres were on fire but it was actually the engine that was emitting those noxious and suffocating fumes. The bus driver continued driving for a few minutes before the engine died and we were left stranded along the shoulder of the highway. The driver should have stopped the bus and opened the doors immediately instead of continuing driving. After trying in vain to start the engine for more than an hour, the driver gave up and another tour bus was sent to pick us up.
We visited Jiu Fen and Yeliu the next day. Yeliu was nice. It was almost surrealistic standing amidst the peculiar natural stone formations caused by weathering and sea erosion over millions of years. When viewed from certain angles, some of those rocklike protrusions bore an uncanny resemblance to the head of a queen wearing a crown or even the head of the alien E.T. in Steven Spielberg's film.
(That's me squatting on an egg-like stone in a ring-like rock outcropping)
(And that's me hugging E.T. the rock)
The second last day of our tour was free-and-easy. Strolling around aimlessly in the streets, we decided to take a MRT train to Taipei 101. However just as we were about to do so, the train service got disrupted due to an earthquake. So we went to Wulai mountain instead and was treated with the sight of a beautiful waterfall. We also got to see the aborginal dance of the Atayal tribe.
Thought not as fun as I expected, my trip to Taiwan was quite an interesting and refreshing experience away from the rigours of army life.
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