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batter life

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Cell phone need a recharge? Just Shake It!

It’s happened to all of us before.  You need to make a call but you’ve run out of battery life! Well, just give your cellphone a shake for an extra burst of power – that’s the idea behind a new cellphone charger that turns your movement into power. Shashank Priya and his colleagues at Virginia Tech are designing an emergency onboard…

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