[WoutStoffels]

So turns out I was wrong in including velocity degrees of freedom. Instead, the spatial coordinate of each particle is relevant, giving 2×3.

[WoutStoffels]

I forgot about kinetic energy!

[WoutStoffels]

this might be counter-intuitive because no experiment is necessarily done. Both theory and simulation can be done (in principle) with pen and paper, or more realistically on computers.

[WoutStoffels]

As mentioned in the video, ‘nuclei and electron clouds’ would be slightly better than ‘atoms’. Also I would add that the objects in a solid have fixed equilibrium positions about which they can vibrate. This is slightly different from not being able to freely move, which is something that atoms in for example a H2O molecule cannot do either, but that is not necessarily a solid.

[WoutStoffels]

Is this for credit as well?

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