空間を飛び交うWi-Fiなどの電波から電力を生み出す技術が開発される、電池無しで永続的に動くデバイスの実現へ向けた一歩！
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![「給食」選択しない家庭に1食あたり340円給付制度、なにも食べ物を持ってこない子どもが現れる [237216734]](http://matome-ch.com/image/9/8286399.jpg)
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