Recent content by Joella Kait

Thanks! I somehow over looked that it said hydrogen atom. For part (d) do you think it's still assuming the same universe as in part (b)?

Homework Statement Consider a point in the intergalactic medium at some cosmic time ## t_{obs}##, the time of arrival of a photon of wavelength ##λ_{obs}## as seen by a hydrogen atom at that location. The source of this photon a comoving distance ##r## away emitted it at wavelength ##λ_{em}##...

I just eyeballed it, and noticed that the harmonics seem to decay faster. I then googled it, and read that this is usually the case, but I'm not sure why.

Yes, I mean decaying faster in time. We kept the FFT spectrum running while we plucked the string and watched peaks form then decay, and the harmonics decayed faster. If this is still confusing (probably due to my inability to explain it well), then don't worry about the FFT part. The point of...

When looking at the FFT spectrum of a sonometer, I noticed that the harmonics decayed faster than the fundamental. Why is this?