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1. rairaiken424 reblogged this from pirozhki and added:

   たき火で湯を沸かしながら携帯電話を充電できる「発電鍋」を、産業技術総合研究所とベンチャー企業のTESニューエナジーが共同開発した。[…]鍋底の外側に熱発電板（6センチ四方）を取りつけ、たき火など500度程度の炎で熱すると、100度までしか上が...

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