Is there anything else that the neutron does other than saveing the conservation laws. i mean there has to be something else the neutron plays a part of in the universe.
What does the bottom quark do for the universe? This is not a sensible question.
- Warren
#3
zefram_c
252
0
Neutron or neutrino? The neutron is responsible for stabilizing atoms to allow multiproton atoms to form, whereas neutrinos teach us astronomy - actually they might be responsible for some more CP violation, but we don't know yet since it's so hard to make any measurements with them.
#4
Maz
2
0
Well, neutrinos were at first brought into physics just to save conservation laws of energy and momentum in beta decays. But later they have also been detected, so I do not see a point of this discussion?
Well, another thing that neutrinoes could partly solve, is the problem of dark matter. If they had a tiny mass (as expected nowadays) they could be the hot dark matter. Cold dark matter is still a big question, as well as origin of neutrino masses. :|
Since E = mc^2, how can photons be massless? If a photon has no mass, then, according to Einstein's formula, its energy is given by E = 0 x c^2, which is 0. Yet, photons do have energy. This seems to be a complete contradiction. Please explain! Thank you.