Can You Hear Sound in Space?04:33

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Published on November 3, 2017

If space is a vacuum, is it possible to hear sound in it? Trace is here to discuss why sound travels differently in space.

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“A vacuum, to us, is a space with no matter in it. As a practical matter though, it’s really a space with very little matter in it.”

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“To understand how bone conduction works, you first have to understand how we hear sounds.”

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“Beyond the border of interstellar space, the distant Voyager 1 spacecraft called back to Earth earlier this year with noises from its new environment.”

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“I’m afraid that your friends are right. In empty space, there is no air, and what we call ‘sound’ is actually vibrations in the air.”

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