Juan Carlos Muñoz on Nostr: npub1rmkge…mvmcx Not an idiot question at all! We have a good idea of what the ...
npub1rmkge3x0g7kruefryruuv03g2f8gfzpkzzq08qwjey4elmahjy3s5mvmcx (npub1rmk…vmcx) Not an idiot question at all! We have a good idea of what the total amount of normal matter in the universe (what we call baryons) should be – even the stuff we haven't found yet.
One such estimate comes from the nuclear reactions in the early Universe, which produced hydrogen, helium and lithium. Different densities of baryons lead to different relative abundances of these elements, so by measuring these relative abundances we can work out the density of baryons. 1/
Published at
2023-08-08 18:55:12Event JSON
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