Comments by "Dr Gamma D" (@DrDeuteron) on "We Were Wrong About Gold's Origin" video.

  1. how many refereed papers have you published? idk, it was a perfectly good title. This is an active area of research, and an explanation of various known processes is required. Unless the target audience is already versed R, S, and P processes, which not many are. Even a physics colloquium would review the basics on a slide or 2 first, since non-astrophysicists are expected in the audience.
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  2.  @gigmaresh8772  you don't need to be English major to know if a verb is trans or not.
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  3. no you weren't. Neutrons stars were not well known in the 60s, and CCSN were not a thing before 66.
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  4. no. this is not how scientists talk. This comment appears on all kinds of physics videos, and it is an absolute amateur hour comment.
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  5. The R-Process and the B-Process, duh.
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  6.  @raycar1165  what do you mean "together"? Is that the opposite of "dispersed" or "collapsed", because it matters.
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  7.  @raycar1165  the neutron star is bound by gravity. A solar mass of neutrons is > 10^57 neutrons, and in a 10km radius, that is a surface gravity of > 100 billion gee, and a binding energy around (mc^2)/7. The star is supported by degenerate pressure, which this video gets a little bit wrong...most do, even Dr Becky, and she's a working astronomer at a 1st tier institution. I would understand white dwarfs 1st, they are supposed by electron degenerate pressure. Basically, electron's quantum state take up a certain volume, and they can't be compressed beyond that. for a neutron star, the white dwarf is compressed beyond that, and the electrons need such high momentum to find an available quantum state (momentum --> energy), that it takes less energy to find a proton and turn it into a neutron---the light weight neutrino then escapes (low mass fermions need more space than high mass). So that leaves a bunch of nuclear matter density neutrons, and some electrons and proton at white dwarf density, which is (M_n/m_e)^3 ~ 6 billion times less dense. now the structure of the neutrons/nuclei has been an active area of research since I left the field, so idk...they lost me at nuclear pasta about 10y ago.
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  8. after the apocalypse, only body positive ppl will survive. The perish order will be: Vegans, Vegetarians, no gluten, keto, chocolate cake and McD's---. Moreover, he who controls the land fills will rule the earth, as they are chock full of resources.
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  9.  @marilynlucas5128  dont be a lunk head.
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  10.  @Thisjustin4clarity  physics is fact, until proven otherwise.
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  11. ejecta may be asymmetric, but a neutron star merger occurs in a volume the size of Los Angeles^1 [1] to the 3/2 power, ofc.
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  12. well, 0 +/- 1 in 7 years can cover a larger chunk of space, and if we need "20" to match observation, 0(1) isn;t going to cut it.
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  13. neutron stars have protons at at least white dwarf densities--as that is how degenerate pressure works.The only reasons the electron inverse beta decay into neutron is because the volume of a quantum state goes as 1/m, so the e is maxed out, but if it can merge with a p, then it can collapse much more as they both become an n.
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  14.  @kayakMike1000  pump da breaks
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  15.  @DavidFMayerPhD  that's what distinguished R for S.
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  16.  @jeremiahlowe3268  beta decay
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  17. idk why people are calling this click bait. Are you so coddled by your iPhone that you can't deal with reality? This is an active area of research, and we're not certain wtf is going on.
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  18. paper is far more rare in the universe.
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