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Imagine walking down Fifth Avenue in the heart of Manhattan while the sounds of the city surround you: the cabbie is honking his horn, the store owner is blasting music, and construction workers are carrying on a loud conversation...

If you pound the pavement every day for your commute or just a little exercise, you can use some of your stride to power your electronic devices. The SolePower is a shoe insole that allows the wearer to generate electricity...

With lithium ion batteries, it used to be that you would have to choose between power and storage capacity. But researchers at the University of Illinois at Urbana-Champaign have proven that it is possible to have the best...