Where Was The Big Bang?
Why Physics Stack Exchange recommends it
Physics Stack Exchange users link it to correct the misconception that the Big Bang was an explosion from a single point in space, and to illustrate uniform expansion.
Recommended by 4 people across 4 different months, 2013 to 2023.
What it is
A 52-second animated explainer by Henry Reich of minutephysics addressing the common question of where the Big Bang happened. It explains that the universe's expansion has no central point and that the Big Bang occurred everywhere at once.
What people said
Recommends Ali · 2013-09 · Physics Stack Exchange · on “What is our location relative to the Big Bang?”
I think Henry made these two minute physics videos( Where Was The Big Bang? [this video] and Science, Religion, and the Big Bang [LINK] ) specially for you: As a short answer, the big bang happened everywhere! So anyone, anywhere(to be super cautious and conservative in an inertial frame) can say I have been at the center of the Big Bang :)
Recommends user12029 · 2016-11 · Physics Stack Exchange · on “Infinite universe - how does it expand?”
This is a good video on the expansion of the universe: [this video] and the reason that black holes "shine" (or rather, the disk around them shines) is describe here: [LINK] . physics stackexchange is meant for technical work on physics, however, and so this question isn't really appropriate! This question would be more appropriate on a website like Quora.com or physicsforums.com.
Recommends Bob Knighton · 2019-05 · Physics Stack Exchange · on “Is universe symmetric about a point?”
It’s even stronger than that. There is good evidence to suggest that, at very large scales, the universe is very nearly isotopic and homogeneous about every point. Most notably, the cosmic microwave background is almost perfectly spherically symmetric, with relative temperature fluctuations on the order of $10^{-5}$ . I think the idea that the universe would be spherically symmetric about a single point comes from a common misconception that the expansion of the universe (the “Big Bang”) started at a single point like an explosion. However, this isn’t how our current understanding of the universe works at all. Instead, cosmological models suggest that the Big Bang happened everywhere, all at
Recommends Filip Milovanović · 2023-10 · Physics Stack Exchange · on “Why is it that the further a galaxy is, the greater is its recessional velocity?”
It's a feature of uniform scaling (uniform resizing/stretching/expansion in all directions). If you multiply all distances by some scaling factor $s$ (so that the whole object is $s$ times larger), then a distance of $1$ will become $s$, but a distance of $10$ will become $10s$. See this video (and note how the "dot trails" are longer the further away from the local "center" you look): [this video]