Tag: science
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The Future of Robots
Futurist Ray Kurzweil explains how the boundary between man and machine is quickly disappearing. PLUS: A gallery of today’s most mind-blowing ‘bots http://www.popsci.com/popsci/technology/d6a188432263d010vgnvcm1000004eecbccdrcrd.html Human experience is marked by a refusal to obey our limitations. We’ve escaped the ground, we’ve escaped the planet, and now, after thousands of years of effort, our quest to build machines…
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Large Study Finds No Link between Marijuana and Lung Cancer
http://www.sciam.com/article.cfm?chanID=sa003&articleID=0002491F-755F-1473-B55F83414B7F0000 The smoke from burning marijuana leaves contains several known carcinogens and the tar it creates contains 50 percent more of some of the chemicals linked to lung cancer than tobacco smoke. A marijuana cigarette also deposits four times as much of that tar as an equivalent tobacco one. Scientists were therefore surprised to learn…