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why is green the dominant color of terrerestrial plants? That's easy. Chlorophyll molecules absorb light at the red and blue ends of the spectrum. It is the middle of the spectrum (the green part) that is reflected and gives plants their characteristic color. A more efficient photosynthetic pigment would be black…
The way the internet has gone sour since then is truly perverse. The central faith of the web’s early design has been superseded by a different faith in the centrality of imaginary entities epitomized by the idea that the internet as a whole is coming alive and turning into a superhuman creature. [...] he way we got…
Davy was now forty, and like every man of science and every poet, he hoped against hope that original work and ‘powers of inspiration’ still lay ahead in his maturity. His description of these longings was nakedly Romantic, and surely recalled his moonlit walks along the banks of the Avon some twenty years before…
Davy’s two main essays were far the most ambitious contribution to the anthology, and announced his intellectual arrival in Bristol. He set out to champion chemistry, and speculate about its future, on the grandest metaphysical scale. In a Penzance notebook he had exclaimed: ‘What we mean by Nature is a series of…
One of the commonest dietary superstitions of the day is a belief in instinct as a guide to dietary excellence ... with a corollary that the diets of primitive people are superior to diets approved by science ... [and even] that light might be thrown on the problems of human nutrition by study of what chimpanzees eat…
In my considered opinion the peer review system, in which proposals rather than proposers are reviewed, is the greatest disaster visited upon the scientific community in this century. No group of peers would have approved my building the 72-inch bubble chamber. Even Ernest Lawrence told me he thought I was making a…
First of all, let's clarify what the NASA budget is. Do you realize that the $850 billion dollar bailout, that sum of money is greater than the entire 50-year running budget of NASA? And so when someone says, "We don't have enough money for this space probe," I'm asking, no, it's not that you don't have enough money…
Believe it or not, no commercial product has ever been shown in a scientifically responsible manner (or even in an irresponsible non-scientific manner) to do anything to improve the brain performance of a developing fetus. There have been no double-blind, randomized experiments whose independent variable was the…
But you do not have to be a scientist to experience this sort of satisfaction. Nor do you have to make a profession of science to develop scientific attitudes, which will make you a better and a happier citizen. Research in the broadest sense is more a habit of mind and a method of approach to problems than a specific…
36. When, under stress of pain, the witch has confessed, her plight is indescribable. Not only cannot she escape herself, but she is also compelled to accuse others whom she does not know, whose names are frequently put into her mouth by the investigators or suggested by the executioner, or of whom she has heard as…
...there is nothing which can better deserve your patronage, than the promotion of science and literature. Knowledge is, in every country, the surest basis of public happiness. In one in which the measures of government receive their impression so immediately from the sense of the community as in ours, it is…
Intellectual quackery extends throughout the landscape of academia; tenured professors in the humanities and social sciences, on the right and left, are constantly purveying theories that are the philosophical, literary, and artistic equivalents of junk science. That many of the researchers consider themselves…
It is clearly not easy for man to give up the satisfaction of this inclination to aggression. They do not feel comfortable without it. The advantage which a comparatively small cultural group offers of allowing this instinct an outlet in the form of hostility against intruders is not to be despised. It is always…
The most famous quality measure is PageRank [221], discussed earlier, which builds on the intuition that a page which is cited by many other pages is likely to be of significant quality. The insight of PageRank is that the obvious way to subvert that model is to set up a load of dummy pages to cite the page which one…