Scientific American
Sunshine is free, so can photovoltaics be cheap?
Wednesday, March 17th, 2010Image via CrunchBase
Here’s how to make a solar cell from silicon: take one solid block of doped silicon, saw it into thin wafers, layer said semiconductors beneath a panel of transparent glass, connect them to a metal electrode that can channel away the electrons knocked loose by incoming photons and turn [...]
Storing megawatts: Liquid-metal batteries and electricity
Wednesday, March 10th, 2010Image via Wikipedia
Making aluminum requires a lot of electricity. That’s because the metal bonds tightly to oxygen and it takes a lot of energy to break that bond. In essence, the process of making aluminum is a giant battery with the silvery metal being reduced to purity at the cathode while oxygen [...]
Magic Fingers: Digging Into Multi-Touch Technology with Both Hands
Monday, March 8th, 2010Image by Eliel via Flickr
At Perceptive Pixel’s offices on Manhattan’s West Side, Jefferson Han stands in front of a megasize multi-touch screen and runs his fingertips across the display. Each finger leaves a trail of colored pixels in its wake, causing the display to look, briefly, like it has been scratched [...]
Google Busting Out Breakthrough Solar Thermal Technology in 1-3 Years?
Sunday, March 7th, 2010Image via CrunchBase
Google “green czar” Bill Weihl has just reported that if all things go as planned, we could see Google rolling out breakthrough solar thermal technology within 1-3 years.
Google “green czar” Bill Weihl has just reported that if all things go as planned, we could see [...]
Internet Ideology War: Google’s Spat with China Could Reshape Traditional Online Freedoms
Friday, March 5th, 2010Image via CrunchBase
How the Internet giant could use its might in closed societies
Late last year a series of sophisticated Internet attacks emanating from China burrowed deep into the computer systems of some two dozen U.S. corporations, among them Northrop Grumman, Dow Chemical and Yahoo. One fought back. After revealing that the attacks [...]
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