Was the Universe EVER this Small?

The big bang is the model that describes the birth and evolution of the universe. But where did the term come from? What does it actually mean?

Watch this video ad-free on Nebula:
https://nebula.tv/videos/scienceasylum-the-big-bang-as-simple-as-possible

Nick Lucid - Host, Writer, Editor, Animator
Em Lucid - Producer
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VIDEO ANNOTATIONS/CARDS

Element Origins:
https://youtu.be/lInXZ6I3u_I

Cosmic Distance Ladder:
https://youtu.be/zrpdwJNNskk
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SOURCES

Sean Carroll GR Stuff:
https://www.preposterousuniverse.com/grnotes/
https://arxiv.org/abs/gr-qc/9712019v1

Fred Hoyle Story:
https://www.nature.com/articles/d41586-024-00894-z
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AFFILIATE LINKS TO BOOK SOURCES

"Spacetime and Geometry"
by Sean Carroll
https://amzn.to/3bLFLFm

"General Relativity"
by Robert Wald
https://amzn.to/3vREnrs

"Gravitation"
by Misner, Thorne, and Wheeler
https://amzn.to/3vSvQEz

FTC Disclosure: These are affiliate links, which means I may receive a commission for purchases made through my links.
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LINKS TO COMMENTS

https://www.youtube.com/watch?v=lInXZ6I3u_I&lc=UgwJDyWhDfYCqufgwIp4AaABAg
https://www.youtube.com/watch?v=lInXZ6I3u_I&lc=UgxnfyJ5WwCJgLCQgaF4AaABAg
https://www.youtube.com/watch?v=lInXZ6I3u_I&lc=UgxomraWefYp8zxc94h4AaABAg
https://www.youtube.com/watch?v=lInXZ6I3u_I&lc=Ugy80y1h-IVthGiIxeR4AaABAg
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IMAGE/VIDEO CREDITS

Select imagery/video supplied by Getty Images

NASA Big Bang:
https://svs.gsfc.nasa.gov/12656

Microwave Background Map:
http://www.esa.int/spaceinimages/Images/2013/03/Planck_CMB

Milky Way:
https://images.nasa.gov/details/PIA10748

Older Fred Hoyle:
https://repository.aip.org/islandora/object/nbla%3A297805
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TIME CODES

00:00 Intro
00:20 Getting a Baseline
00:50 "Big Bang" Coined
02:02 Big Bang was NOT an Explosion
03:29 Expansion Analogies
04:18 The Primeval Atom
05:12 Where did the Big Bang happen?
06:00 Where is the center of the Universe?
06:35 The Many Edges of the Universe
08:46 Observable vs Entire Universe
11:07 Trouble with Edges
12:02 What does "Big Bang" mean?
13:14 Closing Thoughts
13:37 Featured Comment

Видео Was the Universe EVER this Small? канала The Science Asylum