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The importance of silicon for almost every element in modern-day electronic devices and computers is due largely to its crystalline atomic structure.

Editor's note: This article originally appeared in the March 1961 issue of Scientific American. In the days when civilized men believed that the world was flat they had no reason to think about gravity. There was up and down

Bear-size beavers, mammoths, horses, camels and saber-toothed cats used to roam North America, but by 11,000 years ago most such large mammals had died off. To this day, experts debate what caused this late Pleistocene extinction: climate change, overhunting by humans, disease--or something else? Eric Scott, curator of paleontology at the San Bernardino County Museum in Redlands, Calif., suggests it was something else: namely, the immigration of bison from Eurasia

March 1961 Food for Climate Skeptics [More]

The rise of the tablet computer has me thinking about the future of computers. How many computers surround me right now? I have my office computer, my computer at home, a netbook, my smartphone, my BlueAnt…it seems like computers are everywhere.

Optics researchers from the Universities of Glasgow and Bristol have developed an iPad application for accurate, easy and intuitive use of optical tweezers.

Wondering when's the best time of day to make a big decision? Forget the astrology charts and drink a cup of coffee—or four. You make better decisions when you have a full bladder, or so says a study to be published in Psychological Science, a journal of the Association for Psychological Science.

Apple now has the iPad 2. Research in Motion has its Playbook. Google has a plethora of Android tablets, including the Motorola Zoom getting so much attention.

Every villain has his Achilles' heel. And microscopic scoundrels are no exception.

Brigham Young University has suspended Brandon Davies, one of its star basketball players, from the team after it was discovered that he had premarital sex with his girlfriend, a violation of the student honor code. CBSNews.com's Ken Lombardi reports

By Leigh Coleman BILOXI, Mississippi (Reuters) - Marine scientists are debating whether 80-plus bottlenose dolphins found dead along the U.S. Gulf Coast since January were more likely to have perished from last year's massive oil spill or a winter cold snap. [More]

By Amy Maxmen Precious memories need not fade if a report today bears fruit. [More]

%excerpt% See original here: PGT: Gusty winds lock down Honda Classic field

Though automakers are scrambling to roll out hybrid and electric vehicles as fast as they can, BP believes that biofuels are the only way forward--at least for the time being. Olivier Mace, head of strategy, regulatory affairs and communications at BP Biofuels, explained at a London conference yesterday that demand in China and India, two of the fastest-growing markets, would make biofuels at least 12% of the worldwide road transport fuel mix by 2030

A few years back, the sun went into a lull, its activity tailing off like a rambunctious child settling down for a nap. The lull was no surprise; it is a normal part of the sun's roughly 11-year cycle of activity, over which the number of magnetized regions known as sunspots waxes and wanes