A sound to extinguish the fire

Thousands of years after discovering the fire, mankind continues to learn about it. It seems to turn off water can also use sound.

• 2012-07-18T16:07:08+00:00
• Duration: 00:12

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Keywords

A sound to extinguish the fire, sound, extiguish, fire, people, nes, novelty, technology, water, Un sonido para apagar el fuego , sonido, apagar, fuego, investigacion, tecnologia, BBC mundo, 2012