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Posts tagged as “moving”

Heat can act like a sound wave when moving through graphite

Heat can act like a sound wave when moving through graphite A boiling tea kettle diffuses its heat to gradually warm surrounding air, yet it will still be the warmest region even as it, too, slowly cools. But what if the kettle cooled down to room temperature almost instantly, losing its heat in a wave traveling through the material close to the speed of sound? MIT researchers have observed this rare, counterintuitive phenomenon-known as “second sound”-in graphite, the stuff of…