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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. [1]
According to traditional Big Bang cosmology, the electroweak epoch began 10 −36 seconds after the Big Bang, when the temperature of the universe was low enough (10 28 K) for the electronuclear force to begin to manifest as two separate interactions, the strong and the electroweak interactions.
In physical cosmology, assuming that nature is described by a Grand Unified Theory, the grand unification epoch was the period in the evolution of the early universe following the Planck epoch, starting at about 10 −43 seconds after the Big Bang, in which the temperature of the universe was comparable to the characteristic temperatures of grand unified theories.
The epoch CÐ −43.2683 was 10 (−43.2683) seconds, which represents the Planck time since the Big Bang (Time Zero). There were an infinite number of cosmological decades between the Big Bang and the Planck epoch (or any other point in time). The current epoch, CÐ 17.6389, is 10 (17.6389) seconds, or 13.799(21) billion years, since the Big ...
A visual representation of the division order of universal forces. In physical cosmology, the quark epoch was the period in the evolution of the early universe when the fundamental interactions of gravitation, electromagnetism, the strong interaction and the weak interaction had taken their present forms, but the temperature of the universe was still too high to allow quarks to bind together ...
The news comes nearly four years after Big Bang wrapped its 12-season, 279-episode run. At the time, Lorre told TVLine that a solid spinoff conceit failed to materialize before the multi-cam ...
Immediately after the Big Bang, the universe was a hot, dense plasma of photons, leptons, and quarks: the quark epoch.At 10 −6 seconds, the Universe had expanded and cooled sufficiently to allow for the formation of protons: the hadron epoch.
Still, collectors value it for its quirky aesthetic and novelty — being able to play both games and a movie simultaneously was a big deal at the time. Units in mint condition can sell for close ...