You've probably never wondered what it would be like to charge your phone with a hot cocoa or maybe an ice water. Epiphany Labs did. With their new Epiphany onE Puck, the New Castle startup wants you to charge your phone with your beverage--or any other source of hot or cold you can find. A simple heat engine, a drink coaster, and a USB port combined into one device creates what Epiphany hopes will be a solution for people who never have enough time in the day to plug in their smartphones and pave the way for future application of heat engines to places and people in need of electricity.
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