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5m
comment Compton effect in photo-electric?
@aquirdturtle my comment addresses the photoeletric effect, which is not compton scattering. Of course photons can scatter off the field of atoms, that is not what the question is about, imo
12m
comment Compton effect in photo-electric?
@aquirdturtle If the particle it scatters off is bound, one needs a photon with the ionization energy, which means quantized steps and the photon is absorbed in the process. It is a specific feynman diagram. see the link
4h
answered Compton effect in photo-electric?
5h
answered Is the video “How to Reveal Subatomic Particles at Home”'s explanation of its experiment misleading?
5h
answered How do free electrons conduct heat in a metal?
16h
comment Measurement without collapse
maybe this later publication can help univaq.it/~serva/research/publications/1992-measurem.pdf
23h
comment How does negative energy from Hawking Radiation cause a Black Hole to shrink?
@turibe have a look en.wikipedia.org/wiki/Micro_black_hole .. Hypothetical but maybe possible.
1d
comment How does negative energy from Hawking Radiation cause a Black Hole to shrink?
@turibe No, the numbers statistically of matter and antimatter would be equal but when one does the calculations the evaporation is very very slow , "Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe." these energies are not enough to create e+e-. en.wikipedia.org/wiki/Black_hole
1d
revised Cherenkov radiation can it happen in a jar using tap water with 8 thorium laced lantern mantles as a radiation source
edit after edit of question
1d
comment is the potential energy of a black hole infinity
@CuriousOne am I wrong to observe that the concept of potential energy was "invented" in order to keep/identify the law of energy conservation? It is an upside down view, but that should be OK. In a similar way the E=mc2 still keeps energy conservation intact.
1d
awarded  experimental-physics
1d
comment Why do some substances undergo sublimation while others do not?
you should give a link for the phase diagrams en.wikipedia.org/wiki/Phase_%28matter%29
1d
comment Looping fractal paradox
No it is not. the standard model en.wikipedia.org/wiki/Standard_Model of particle physics together with the big bang model en.wikipedia.org/wiki/Big_Bang cover the current accepted models .
1d
awarded  Guru
1d
comment is the potential energy of a black hole infinity
@CuriousOne I am simply stating that the usual way of exchanging kinetic with potential energy in classical mechanics with a test particle, cannot work in the realm of GR .
1d
comment Is the empty space really empty?
@Qmechanic the above is also for you
1d
comment Is the empty space really empty?
@JohnRennie You are too fast in declaring duplicates. In this case, when the OP says that he /she cannot understand what he finds on the net, pointing to more of such answers is not helpful. I just managed to put in my answer which I think is elementary enough to be understood by similar readers.
1d
answered Is the empty space really empty?
2d
comment Why are Lunar Eclipse more common than Solar Eclipse?
earthsky.org/space/… yes a good discussion. depending on definition of eclipse luner wins by a small margin
2d
comment The naive idea of the big bang
My impression is that the standard history of the universe as seen here en.wikipedia.org/wiki/Big_Bang#Overview is not longer based on the naive BB model, i.e the mathematical singularity at the beginning of the universe. The naive BB is supposed to be an envelope which at the moment uses an effective quantization of gravity to avoid the singularity at the beginning, and introduces of dark energy to take care of the observation of continuing expansion. Unless this is what you call "naive BB"