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rollstick_electrical energy supply for Sahel region in Africa dynamo generates low voltage power that can charge a wide choice of electrical devices. battery can be charged through multiple actions, like: rolling and turning. stick is detachable from the wheel and can be easily adapted to the surrounding. number of LED lights glowing informs about the battery level. |
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© copyrights 2007 by katarzyna bazylczyk. all rights reserved.
all material published remains the exclusive copyright 2007 by katarzyna bazylczyk. no contents may be reproduced in whole or in part without the written consent of katarzyna bazylczyk. |
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