Photon epochei muuta kuin Wow! kantsii kysellä
In physical cosmology, the photon epoch was the period in the evolution of the early universe in which photons dominated the energy of the universe.
The photon epoch started after most leptons and anti-leptons were annihilated at the end of the lepton epoch, about 10 seconds after the Big Bang.
Atomic nuclei were created in the process of nucleosynthesis which occurred during the first few minutes of the photon epoch.
For the remainder of the photon epoch the universe contained a hot dense plasma of nuclei, electrons and photons.
About 380,000 years after the Big Bang the temperature of the universe fell to the point where nuclei could combine with electrons to create neutral atoms.
As a result, photons no longer interacted frequently with matter, the universe became transparent and the cosmic microwave background radiation was created and then structure formation took place.
wikipedia
Saimme napakan vastauksen edellisen tekstin uteluihin
1. leptonit ja anti-leptonit
2. 10 sekuntia alusta fotonit
3. Atomiytimet muutaman minuutin aikana
4. Maailmankaikkeus tiheää plasmaa, jossa atomiytimet, elektronit ja fotonit
5. Kosmos jäähtyy 380.000 vuoden kuluessa niin, että vetyatomit voivat muodostua
6. Maailmankaikkeus tulee näkyväksi, valoisaksi - tulee valo!
7. Kosminen taustasäteily luodaan
8. Maailmankaikkeuden rakenteet alkavat muotoutua
Voimme siis todeta, että ennen valoa oli jotain.
Standardimallin mukaan
alussa olivat leptonit
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