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  1. › wiki › RedshiftRedshift - Wikipedia

    4 days ago · This gravitational redshift result can be derived from the assumptions of special relativity and the equivalence principle; the full theory of general relativity is not required. The effect is very small but measurable on Earth using the Mössbauer effect and was first observed in the Pound–Rebka experiment.

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    6 days ago · General relativity allowed for a dynamical, curved spacetime, with which highly massive systems and the large-scale structure of the universe can be well-described. General relativity has not yet been unified with the other fundamental descriptions; several candidate theories of quantum gravity are being developed.

  3. Sep 19, 2021 · Summary: Normal atoms consist of up and down quarks, gluons and electrons. Under what conditions (different physics constant, different vacuum energy?) would atoms be formed from the other quarks (strange/charm, top/botton).

  4. Sep 18, 2021 · For comparison, the cyan cone is the Kepler transit survey field. The inset shows an artistic conception of a planetary system in the galactic bulge. Credit: Osaka University. Gravitational microlensing “is an observational effect that was predicted in 1936 by Einstein using his General Theory of Relativity. When one star in the sky appears ...

  5. Sep 18, 2021 · No. A coordinate transform cannot change the angular momentum (or mass) of a Kerr black hole. We can prove this by calculating the Kretschmann scalar (arXiv:0706.0622). Thus the pattern of geodesics — which affects the appearance of the black hole based on how it distorts the light from distant stars — will be different, no matter how the ...

  6. Sep 18, 2021 · George Boole's Laws of Thought Hello. I was inspired to try and read George Boole’s Laws of Thought. I'm at a point where I'm stuck and near ready to quit. No you tube videos help. The link to the pdf of the book is: 15114-pdf.pdf ( I'm so stuck that it's hard for me to even...

  7. Sep 18, 2021 · The General Relativistic formulation of the equation of hydrostatic equilibrium features pressure on the RHS. So the higher the pressure, the steeper the required pressure gradient. Ultimately, this also leads to an instability at a finite size and density that occurs at masses lower than the canonical Chandrasekhar mass.

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