Physics predicts all of Cosmic Time. Here's how.

Believe it not, Einstein originally thought the universe was static. It would take Alexander Friedmann to correct him. Here are the Friedmann equations, explained simply.

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

What was the Big Bang?
   • Was the Universe EVER this Small?  
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SOURCES

Einstein's Papers:
https://einstein-annalen.mpiwg-berlin...

Friedmann's Paper:
https://doi.org/10.1023/A:1026751225741

Einstein's Biggest Blunder:
https://arxiv.org/abs/1804.06768
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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

   • Was the Universe EVER this Small?  
   • Was the Universe EVER this Small?  
   • Was the Universe EVER this Small?  
   • Was the Universe EVER this Small?  
   • Was the Universe EVER this Small?  
________________________________
IMAGE/VIDEO CREDITS

Einstein Portraits:
https://commons.wikimedia.org/wiki/Fi...
https://commons.wikimedia.org/wiki/Fi...
https://repository.aip.org/islandora/...

Hilbert Portrait:
https://commons.wikimedia.org/wiki/Fi...

Friedmann Portrait:
https://commons.wikimedia.org/wiki/Fi...
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TIME CODES

00:00 Intro
00:17 Brief History of Cosmology
00:58 Friedmann Equations
03:24 Possible Futures of a Universe
06:05 Changes in the Scale Factor
09:51 Matter, Dark Matter, and Light
11:09 Dark Energy
12:41 Closing Thoughts
13:38 Featured Comment