Originally Posted By: Bill
If a photon having sufficient energy strikes the atom the electron will immediately transition to the first (or higher) excited state. As far as I know there is no mention of time in this transition.


My understanding is that you are absolutely right.

This is probably a red herring, but it is prompted by the mention of individual frames of a film. We are all familiar with the situation in which a wheel on film appears to be rotating backwards. Has anyone else wondered why we see the same effect in real life? Watching an accelerating wheel, we see it pass through a particular speed where it "goes backwards". Does this mean that our vision is "quantised"?

There never was nothing.