Why is water said to be “incompressible” when sound can travel through it? Doesn’t sound imply compressions and rarefactions?

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Why is water said to be “incompressible” when sound can travel through it? Doesn’t sound imply compressions and rarefactions?

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Anonymous 0 Comments

Everything is compressible. An incompressible material would transmit a push at one end into movement at the other instantly, allowing faster-than-light information transfer and thus breaking the laws of physics.

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