High-Altitude Wind Machines Could Power New York City
The wind blowing through the streets of Manhattan couldn’t power the city, but wind machines placed thousands of feet above the city theoretically could. The first rigorous, worldwide study of high-altitude wind power estimates that there is enough wind energy at altitudes of about 1,600 to 40,000 feet to meet global electricity demand a hundred times over.
Social Networks Spread Iranian Defiance Online
Iranians are blogging, posting to Facebook and, most visibly, coordinating their protests on Twitter, the messaging service. Their activity has increased, not decreased, since the presidential elections on Friday and ensuing attempts by the government to restrict or censor their online communications.
On Twitter, reports and links to photos from a peaceful mass march through Tehran on Monday, along with accounts of street fighting and casualties around the country, have become the most popular topic on the service worldwide, according to Twitter’s published statistics.
Microsoft founder Bill Gates last week injected $50 million into a programme to circumcise up to 650,000 men in Swaziland and Zambia.The goal of the project is to curb the transmission of HIV in two of the AIDS hotspots of the world, as circumcision has been shown to more than halve the risk of men becoming infected.
Magnetic Superatoms Discovered
Why do we think this is something DARPA has been dreaming of for its chemical robots project: a 'magnetic superatom' – a cluster of atoms that can mimic different elements of the periodic table – that one day may be used to create molecular electronic devices for the next generation of faster computers with larger memory storage.
Mysterious Gamma-Ray Bursts May Have Ties to Failed Black Holes
On the Streets of China, Electric Bikes Are Swarming
CIA chief believes Cheney almost wants US attacked
Google's digital book future hangs in the balance
Why Wealthy Nations Are Stiffing Africa
Gene evolution process discovered
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