Other Sciences news

A global teacher of 1,516 lessons and counting

From a tiny closet in Mountain View, Calif., Sal Khan is educating the globe for free. His 1,516 videotaped mini-lectures -- on topics ranging from simple addition to vector calculus and Napoleonic campaigns -- are transforming ...

dateJun 27, 2010 in Other
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Waves of Power

New buoys convert the ocean's energy into electricity Whether witnessed as destructive waves, gently rolling swells or mesmerizing rhythms along the shoreline, the sea's energy is immense. In fact, experts estimate that ...

dateMay 17, 2005 in
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