What? You don't think a solar-powered car could go fast enough to race? They might not be ready for the Indy 500 yet, but engineering departments at various universities around the world are working on solar cars that will hold their own and cost nothing in gasoline. Shown here is the Tokai Challenger, built by Tokai University students in collaboration with Japanese automotive companies. It won the Australian World Solar Challenge, a 1,877-mile race, twice. It's just one of a dozen solar race cars you'll learn about at Tech Graffiti. Link
(Image credit: Kohei SAGAWA, Hideki KIMURA)
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