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tfcdesign's activity in the archive.
I don't see why they can't just put a crank on the cell phone like those flashlights designed for Africa. The only place I think vibration generators would be good is near subways/trains etc and they can add to the city's power supplies.
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I don't see why they can't just put a crank on the cell phone like those flashlights designed for Africa. The only place I think vibration generators would be good is near subways/trains etc and they can add to the city's power supplies.