1 2 3 4 5 Older >> Oldest >> In terms of diversity and sheer numbers, the microbes occupying the human gut easily dwarf the billions of people inhabiting the Earth. Numbering in the tens of trillions and representing many thousands of distinct genetic families, this microbiome, as it's called, helps the body perform a variety of regulatory and digestive functions, many still poorly understood.
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Science Blog Tue, 20 Jan 2009 03:37:08 +0000While the harsh winter pounding many areas of North America and Europe seemingly contradicts the fact that global warming continues unabated, a new survey finds consensus among scientists about the reality of climate change and its likely cause.
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Science Blog Tue, 20 Jan 2009 00:27:53 +0000People who received a mild electrical current to a motor control area of the brain were significantly better able to learn and perform a complex motor task than those in control groups.
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Science Blog Tue, 20 Jan 2009 00:14:55 +0000Looking at the most likely ways of reducing greenhouse gas emissions, I am struck that low-tech innovations, such as wind turbines and (the yet unproven) sequestration of CO2 from coal-burning plants, seem to be offering faster and better solutions than high-tech ones, like solar cells and improved nuclear reactors. Now in New Scientist, I found an intriguing, if a bit quirky article describing how a combination of heat from greenhouses and hot-air balloons can be used to generate substantial amounts of electricity.
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Science Blog Mon, 19 Jan 2009 19:05:36 +0000Even though scientists have successfully sequenced the human genome, they still lack a clear picture of exactly how coding and non-coding DNA sequences function together, or how genomes evolve over time.
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Science Blog Mon, 19 Jan 2009 19:00:19 +0000Tomorrow's inaugural parade in Washington, D.C., will offer space buffs a glimpse into the future: NASA's next-generation moon vehicle, the Lunar Electric Rover (LER), will roll down Pennsylvania Avenue to honor the incoming prez. [More]
Scientific American Mon, 19 Jan 2009 17:23:00 ESTTheorists have long wondered how massive stars--up to 120 times the mass of the Sun--can form without blowing away the clouds of gas and dust that feed their growth. But the problem turns out to be less mysterious than it once seemed.
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Science Blog Mon, 19 Jan 2009 16:50:28 +0000You notice it in your everyday life, the bewildering diversity in coat colour among our pigs, dogs and other domestic animals.
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Science Blog Mon, 19 Jan 2009 16:38:56 +0000I have been reading Jerome Kagan's compelling recent book on emotion. I stumbled on one particular line:
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Science Blog Mon, 19 Jan 2009 16:23:00 +0000Chomping at the bit to Twitter, text and make cell-phone calls from tomorrow's inauguration? You might want to limit your expectations: telecom providers say they're expecting record wireless and Internet traffic in the nation's capital, and are asking mobile users to wait until after the big event to start tweeting and calling, lest their messages get delayed and their calls met by busy signals. [More]
Scientific American Mon, 19 Jan 2009 16:15:00 EST 1 2 3 4 5 Older >> Oldest >>
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