As far as I know every atom vibrates / oscillates / I don't know what it's called in English with a frequency, specific for its element. I don't mean the velocity of the atom, which defines temperature. Although, honestly the two might be related in a way I don't know.
For example, I know that the proof that time is a real physical dimension and not just something people made up with clocks is that you take an atomic clock at sea level and one on a high mountain and one will run behind.
I know atomic clocks don't measure time by the atoms' vibration but by a more complicated mechanism but I just thought that the other mechanism might be affected by the difference in temperature (which I am sure they account for, if needed) but still, I thought to myself if you just measure the rate of oscillation / vibration then that shouldn't be affected by temperature and then realised I am not sure about that.
- Is the vibration / oscillation of an atom with a frequency, strictly specific to that element, different from the atom's velocity?
- Is said vibration / oscillation not affected by temperature? Difficult question to formulate, as it's more than atoms define temperature than the other way around.