From a GPS that outsmarts traffic jams to flooring that generates electricity from footsteps, student inventors are dreaming up a more convenient, energy efficient future. Ira Flatow talks with winners of Microsoft's "Imagine Cup" and Siemens' "We Can Change The World Challenge" about their innovations.
Source: http://www.npr.org/2012/06/29/155992720/meet-the-energy-saving-gadgets-of-the-future?ft=1&f=1007
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