Fires are easy to start, which is why people have historically burned witches, undesirable books and post-plunder villages rather than freezing them into destruction. But a thermodynamics research team at Stanford (overseen by tech venture capitalist Adam Grosser) has developed
a thermos-sized device that contains a refrigerant that's triggered when the device is heated and left to cool. It then acts like a powerful cold pack, turning anything from a jug to a hole in the ground into a twenty-four-hour minifridge.
There are no details on how the device works, but a consumer-ready version is projected to cost only $50. It's too late to save the witches of Salem, copies of Luther's Bible translation or the villages of Mongolian conquest, but this new hot-cold contraption could save millions in the future by keeping needed vaccines cold.
(Via Core77.)
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