Recent content by sol47739

Can you by any type of rotations or transformations turn a left handed helix into a right handed or vice versa? If yes why? And if no, why not? For example if you have a 2 d triangle like the one in the picture: You can turn it in 3 dimensions 180 degrees in a sense mirroring it and you will...

From Quora: The light from Andromeda galaxy is actually redshifted, not blueshifted. The light from all distant galaxies appears to be redshifted, meaning that the light waves are stretched out and shifted towards the red end of the spectrum. This redshift is caused by the expansion of the...

Isn’t the answer I got from the person on Quora correct...

So you can see on the emission lines that they are higher in frequency than the usual emission lines? Or is it that almost everything in space is redshifted to lower frequency and the Andromeda is just less redshifted than predicted by the cosmological redshift?

Yes negative in comparison to other cosmological objects but not „actually“ negative.

Thanks! I will look at it.

I asked a similar question on Quora not that long...

I do read your responses. The problem I think is that I am too critical and I do not just accept something. And you are so to speak textbook correct. But since I doubt textbooks before accepting something, my questions might sound stupid. Thanks for the exchange. I will think about it.

What then does give enough energy for it to correspond to Maxwell Boltzmann distribution. Was Dale Right that the recoil is negible? And the Blackbody spectrum(the part amounting to spontaneous emission Wien’s distribution) is directly proportional to the Maxwell Boltzmann distribution. Thus...

But as said. I wonder is that recoil enough since it is very small, is that enough to amount for the Maxwell Boltzmann distribution?

Yes but that still happens in quantized steps as photons. And vibration of molecules are also quantized, so if such a vibration is “activated” the molecule actually isn’t in its true ground state. Maybe in an electronic ground state but not in the ground state of all possible things that can get...

But in that particular case then, is it the recoil that causes the atoms to start moving or is it the photon being bound to the atom? 1.Let’s say a photon gets absorbed what happens with the momentum of the entire atom then? 2.While the photon is “bound” to the atom how is it affected by it...

Yes, you are correct that it is because of the temperature. But I am trying to understand temperature on a deeper level. What is temperature? Internal energy and movements of atoms. And what is the original cause of this, if it is about neutral atoms and molecules, which you can’t accelerant...

So it is true in a sense that the recoil alone can’t account for the velocities of atoms at a certain temperature? But photons are bound with momentum to the atom? Thanks for you explanation so far. According to you, what causes the momentum of the atoms when you heat up something with...

While the photon that carries linear momentum is bound to the atom the atom goes faster as fast as the kinetic energy the photon that is bound to it carries. When the photon leaves the atom the momentum leaves the atom and it goes slower or stop moving in case it got emitted to the ground state.