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POPSPhysicists investigate how time moves forward This provides an orientation, or arrow of time, and it is generally believed that all other time asymmetries, such as our sense that future and past are different, are a direct consequence of this thermodynamic arrow.” In their study, Feng and Crooks have developed a method to accurately measure “time asymmetry” (which refers to our intuitive concept of time, that the past differs from the future, in contrast with time symmetry, where there is no distinction between past and future). They began by investigating the increase in energy dissipation, or entropy, in various arrangements. While time blatantly moves forward in the macroscopic world, the direction of time becomes confusing on the scale of a single molecule
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POPSConfidence game - The science of Trustworthiness Researchers have discovered that surprisingly small factors - where we meet someone, whether their posture mimics ours, even the slope of their eyebrows or the thickness of their chin - can matter as much or more than what they say about themselves. We size up someone's trustworthiness within milliseconds of meeting them, and while we can revise our first impression, there are powerful psychological tendencies that often prevent us from doing so - tendencies that apply even more strongly if we've grown close.
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POPSA Study of Women Inventors, Part 1 The social appeal for women to become inventors at that time was best expressed when Scientific American tried to assure them “that there was nothing inherently unladylike about the process of invention. Like novel writing, it could be done in the parlor at home, and did not require traffic in the factory or marketplace.” Follow to Part 2
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POPSMe, Myself and I The generally accepted linguistic explanation for the capital “I” is that it could not stand alone, uncapitalized, as a single letter, which allows for the possibility that early manuscripts and typography played a major role in shaping the national character of English-speaking countries. So what effect has capitalizing “I” but not “you” — or any other pronoun — had on English speakers? It’s impossible to know, but perhaps our individualistic, workaholic society would be more rooted in community and quality and less focused on money and success if we each thought of ourselves as a small “i” with a sweet little dot. There have, of course, been plenty of rich and dominant cultures throughout history that have gotten by just fine without capitalizing the first-person pronoun or ever writing it down at all. There have also been cultures that committed atrocities even while capitalizing “you.”
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POPSDo economists need brains? For the past four years, a group of leading neuroeconomists and neuroscientists has met to refine questions about the brain and economic behaviour. Researchers trained in both neuroscience and economics are entering the field. Daniel Kahneman, a Princeton University psychologist who in 2002 won the Nobel prize in economics for his contribution to behavioural economics, is an enthusiastic supporter of the new field. “In many areas of economics, it will dominate, because it works,” says Mr Kahneman. Interesting read...
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POPSExercise in a Pill Previous work with genetically engineered mice in the Evans lab had revealed that permanently activating a genetic switch known as PPAR delta turned mice into indefatigable marathon runners. In addition to their super-endurance, the altered mice were resistant to weight gain, even when fed a high-fat diet that caused obesity in ordinary mice. On top of their lean and mean physique, their response to insulin improved, lowering levels of circulating glucose.
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POPSBuilding 'The Matrix' Feynman envisioned, a general purpose, programmable quantum computer could itself carry out quantum simulations. But such machines are still decades away, most researchers say, while machines designed only for quantum simulations may become available sooner.
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POPSSex, lies and some existential questions.. :-) So many orchids treat their pollinators so nastily, with false promises of food and sex or the occasional dunking of insect visitors into bucket-shaped petals full of liquid, that naturalists have puzzled over the relationship for more than a century. Darwin was so consumed by the odd interactions that after “The Origin of Species,” his next book was an entire volume on the subject, “The Various Contrivances by Which Orchids Are Fertilized by Insects.”
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