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In physical cosmology, the Alpher–Bethe–Gamow paper, or αβγ paper, was created by Ralph Alpher, then a physics PhD student, his advisor George Gamow, and Hans Bethe. The work, which would become the subject of Alpher's PhD dissertation, argued that the Big Bang would create hydrogen , helium and heavier elements in the correct ...
This image is a derivative work of the following images: Alfa beta gamma radiation.svg licensed with Cc-by-2.5, Cc-by-sa-3.0-migrated, GFDL 2009-12-27T21:58:33Z Ehamberg 576x761 (75686 Bytes) made the paper sheet white instead of transparent; 2007-02-25T18:39:57Z Stannered 576x761 (75369 Bytes) (corrected arrows)
English: Alpha (α) radiation consists of a fast-moving helium-4 (4He) nucleus and is stopped by a sheet of paper. Beta (β) radiation, consisting of electrons, is halted by an aluminium plate. Gamma (γ) radiation, consisting of energetic photons, is eventually absorbed as it penetrates a dense material.
Alpha particles are stopped by a sheet of paper whilst beta particles halt to an Tin foil . Gamma radiation is dampened when it penetrates matter. Gamma rays can be stopped from 4 meters of lead. Tungsten and tungsten alloys can stop Gamma radiation with much less mass than lead
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The Einstein field equations (EFE) may be written in the form: [5] [1] + = EFE on the wall of the Rijksmuseum Boerhaave in Leiden, Netherlands. where is the Einstein tensor, is the metric tensor, is the stress–energy tensor, is the cosmological constant and is the Einstein gravitational constant.
the symbol ϖ, a graphic variant of π, is sometimes construed as omega with a bar over it; see π the unsaturated fats nomenclature in biochemistry (e.g. ω−3 fatty acids ) the first uncountable ordinal ω 1 {\displaystyle \omega _{1}} (also written as Ω)
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