From The Science Asylum.
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.
Watch this video ad-free on Nebula:
https://nebula.tv/videos/scienceasylum-the-equations-that-proved-einstein-wrong
Bonus Video (Nebula Exclusive):
https://nebula.tv/videos/scienceasylum-measuring-curvature-in-an-infinite-universe
Nick Lucid – Host, Writer, Editor, Animator
Em Lucid – Producer
________________________________
VIDEO ANNOTATIONS/CARDS
What was the Big Bang?
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
https://www.patreon.com/ScienceAsylum
YouTube Membership:
https://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join
Sign-Up for Nebula:
https://go.nebula.tv/scienceasylum
Advanced Theoretical Physics (Paperback):
https://www.scienceasylum.com/paperback
Advanced Theoretical Physics (eBook):
https://www.scienceasylum.com/ebook
Merchandise:
https://www.scienceasylum.com/store
________________________________
HUGE THANK YOU TO THESE SUPPORTERS
Asylum Counselors:
Joe K. Kim
Asylum Orderlies:
Chloë Joan López, Dhruv Singhal, James Smith, Joel Wolhendler, Medec Hurtz, Peter Engrav
Einsteinium Crazies:
Benjamin Sharef, Dan Sullivan, Eoin O’Sullivan, Jonathan Lima, Joseph Salomone, Kevin Flanagan, Matias Cveczilberg, Sheila Owen, William Hutchison
Plutonium Crazies:
Al Davis, Compuart, Ellis Hall, Kevin MacLean, Rex_zane, Rick Myers, Vid Icarus
Platinum Crazies:
Cesar Moya, Christopher Bennett, Clayton Bruckert, David Johnston, Fabio Manzini, Ishay Oz, Jonathan Reel, Joshua Gallagher, Li-Ce Hu, Marino Hernandez, Mikayla Eckel Cifrese, Mr. Orn Jonasar, Olga Cooperman, P. Patrick Tukkers, Qin Li, Ulrich, Vasile Coman, Zachary Milne
________________________________
SOURCES
Einstein’s Papers:
https://einstein-annalen.mpiwg-berlin.mpg.de/related_texts/sitzungsberichte
Friedmann’s Paper:
https://doi.org/10.1023/A:1026751225741
Einstein’s Biggest Blunder:
https://arxiv.org/abs/1804.06768
________________________________
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.
________________________________
LINKS TO COMMENTS
________________________________
IMAGE/VIDEO CREDITS
Einstein Portraits:
https://commons.wikimedia.org/wiki/File:08608_einstein_1916.jpg
https://commons.wikimedia.org/wiki/File:Einstein_1921_portrait2.jpg
https://repository.aip.org/islandora/object/nbla%3A294080
Hilbert Portrait:
https://commons.wikimedia.org/wiki/File:Hilbert.jpg
Friedmann Portrait:
https://commons.wikimedia.org/wiki/File:Aleksandr_Fridman.png
________________________________
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
