Watch a Machine Put Out a Fire WITH SOUND [Video]

You can put out a fire with nothing more than sound—and it doesn't even have to be eardrum-deadening, Marty McFly-flattening loud sound. This is Darpa's sonic fire extinguisher, and it sounds kinda like a foghorn. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/RfW7sHDqAr4/watch-a-machine-put-out-a-fire-with-sound

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