Posted by Steve Simon on January 14, 2013, 4:23 pm, in reply to "Re: Sound Polarisation"
Yes, I agree with cautious undergrad that we have to think about 3d potentials -- but the case of hard spheres is a strange one... since there is no harmonic restoring force... .just one atom bumping into each other, I'm not sure if you really get a nice transverse wave or not). Better to think of a solid as a bunch of objects held together with springs in all directions.
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