Physicist develops battery using new source of energy

Researchers at the University of Miami and at the Universities of Tokyo and Tohoku, Japan, have been able to prove the existence of a "spin battery," a battery that is "charged" by applying a large magnetic field to nano-magnets ...

High hopes, hard realities for India's 35-dlr computer

The Indian government won headlines around the world when it unveiled a prototype 35-dollar tablet computer in July, but questions are now growing over whether the project is just a pipe dream.

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