Leonard Hofstadter
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Apr 23, 2014 · In the standard ΛCDM model of the Big Bang, the universe is infinite and has always been such. The Big Bang singularity happened everywhere, in the sense that far back enough in time, the density diverges to infinity at every place. But this is just a particular model--it assumes that the universe if spatially flat and is globally homogeneous ...
Nov 12, 2016 · According to special relativity, the universe has no centre. Any nonrotating object travelling at any constant velocity slower than the speed of light is a valid frame of reference and in its frame of reference, the centre of the universe is the place where the big bang has occurred. There is no timelike line that all observers agree is the ...
Apr 14, 2021 · in current models of the Big Bang, what happens to the products of baryon annihilation? In current thinking about the Big Bang, the baryogenesis phase involves CP/CPT symmetry violation. There is an excess (says Wikipedia) of perhaps 1 in $10^{10}$ baryons over antibaryons, the majority ... big-bang-theory.
Feb 21, 2016 · "A few minutes into the expansion, when the temperature was about a billion (one thousand million) kelvin and the density was about that of air, neutrons combined with protons to form the universe's deuterium and helium nuclei in a process called Big Bang nucleosynthesis. Most protons remained uncombined as hydrogen nuclei.
3. Yes, we do. The exact spot is: All of the universe. In the Big Bang, space-time itself expanded. To say that it took place only at a certain location, you would need something which is external to the entire universe. There is no such thing. Relative to us, we are inside the region that the Big Big started at.
Jan 7, 2016 · The Universe is, and has always been, infinite. The Big Bang was just when the Universe's expansion really began — that is, when objects started drifting away from each other. The Universe was still infinite, but there was less space between the matter. This density caused the Universe to get extremely hot and expand.
Following the Big Bang the Universe continues to expand, presumably and roughly equally in all directions. It is understood that the Big Bang occurred 13.798 ± 0.037 billion years ago. Is there any way for us to know how far we are away from the nearest edge of the expansion front of the Big Bang? universe. big-bang-theory.
2. The most significant assumption is that very shortly after the Big Bang, the universe expanded very rapidly for a short period of time. Much faster than normal expansion due to Big Bang. It was an exponential expansion and occurred around 10−32 10 − 32 seconds after Big Bang and lasted for tiny fraction of second.
Mar 18, 2017 · Our theories break down at the Planck epoch of the Universe. The Planck epoch was the earliest epoch of the Universe and lasted until $10^ {-42}$ seconds after the Big Bang — that's 200 Planck times, which are the shortest meaningful measurement of time. During this epoch, the entire Universe was at $1.417×10^ {32} \; \mathrm {K}$, which is ...
The Big Bang is when the space of the universe started expanding. Near the formation of a black-hole they tell in this same article that matter and magnetic field play a key role the gamma-ray bursts. True enough. But as far as I know matter and magnetic fields played no role in the Big Bang. I know magnetic fields are induced by charge ...
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