In Pictures: Hot high-tech thingamajigs

A quick look at the latest in waterproof cellphones, dancing iPhones, solar-powered gear and robots from around the world

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People look at the world's first energy-powered wheels for bicycles during the "Intersolar" Europe trade fair in Munich this month. The front wheel, called "Roola," is developed by proEco, powers at 250 watts and travels up to 40 miles.

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In Pictures: Hot high-tech thingamajigs

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