|Thursday, Sep 27, 2012 - 6:00 AM
"Making Stuff Cleaner"
David Pogue explores the science and business of clean energy, examining alternative ways to generate it, store it and distribute it. One scientist uses chicken feathers to create a cheap way to make hydrogen cars safer. Pogue looks at the dependency on a rare resource in South America to make lithium batteries and how scientists might devise a way for batteries to run on molten salts, abundant in the U.S. Part 3 of 4 G
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