What is acoustic radiation?

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Offline mriver8

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What is acoustic radiation?
« on: 05/10/2014 06:03:57 »
Or radiation acoustics?

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Offline yor_on

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Re: What is acoustic radiation?
« Reply #1 on: 05/10/2014 10:08:24 »
You're probably asking about 'phonons' https://en.wikipedia.org/wiki/Sound_amplification_by_stimulated_emission_of_radiation

Those comes from treating matter as a lattice having a 'collective excitation' (vibrating) in where you then define 'quasi particles' carrying this 'force', called phonons, somewhat alike 'photons'.
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Offline alancalverd

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Re: What is acoustic radiation?
« Reply #2 on: 05/10/2014 17:04:56 »
Acoustic radiation is what ordinary peasants call "sound": compression waves.
helping to stem the tide of ignorance