MinutePhysics5.83 млн
Следующее
Опубликовано 1 августа 2019, 16:34
Thanks to Brilliant for supporting MinutePhysics. Get 20% off a premium subscription at brilliant.org/MinutePhysics
This video is about how Albert Einstein made a mistake when applying the Field Equations of General Relativity to cosmology (in particular, to a static, constant density universe), and solved the problem by introducing the cosmological constant, rather than allowing for a dynamic universe with a scale factor - that is, the Friedmann-Lemaitre-Robertson-Walker universe, first developed by Alexander Friedmann of Russia. Later, it was discovered by the Slipher and Hubble red-shift that the universe is indeed expanding, and even later, by Schwarz and company in 1998, that the expansion is accelerating - aka, dark energy. And the cosmological constant was re-introduced.
Thanks to Grant Sanderson of youtube.com/3Blue1Brown for help with the fancy equation animation!
REFERENCES
The Einstein Field Equations
en.wikipedia.org/wiki/Einstein...
Interrogating the Legend of Einstein’s “Biggest Blunder”
arxiv.org/abs/1804.06768
On the General Theory of Relativity (Einstein)
einsteinpapers.press.princeton...
The Foundation of the General Theory of Relativity (Albert Einstein)
einsteinpapers.press.princeton...
Cosmological Considerations in the General Theory of Relativity
einsteinpapers.press.princeton...
Einstein Wrongly Criticizes Alexander Friedmann
einsteinpapers.press.princeton...
Alexander Friedmann Corrects Einstein
einsteinpapers.press.princeton...
Einstein Admits his Mathematical Mistake
einsteinpapers.press.princeton...
The Field Equations of Gravitation
einsteinpapers.press.princeton...
George Gamow
en.wikipedia.org/wiki/George_G...
Mach’s Principle
en.wikipedia.org/wiki/Mach%27s...
Equivalence Principle
en.wikipedia.org/wiki/Equivale...
Sean Carroll and William Press Paper
preposterousuniverse.com/wp-co...
Support MinutePhysics on Patreon! patreon.com/minutephysics
Link to Patreon Supporters: minutephysics.com/supporters
MinutePhysics is on twitter - @minutephysics
And facebook - facebook.com/minutephysics
And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
This video is about how Albert Einstein made a mistake when applying the Field Equations of General Relativity to cosmology (in particular, to a static, constant density universe), and solved the problem by introducing the cosmological constant, rather than allowing for a dynamic universe with a scale factor - that is, the Friedmann-Lemaitre-Robertson-Walker universe, first developed by Alexander Friedmann of Russia. Later, it was discovered by the Slipher and Hubble red-shift that the universe is indeed expanding, and even later, by Schwarz and company in 1998, that the expansion is accelerating - aka, dark energy. And the cosmological constant was re-introduced.
Thanks to Grant Sanderson of youtube.com/3Blue1Brown for help with the fancy equation animation!
REFERENCES
The Einstein Field Equations
en.wikipedia.org/wiki/Einstein...
Interrogating the Legend of Einstein’s “Biggest Blunder”
arxiv.org/abs/1804.06768
On the General Theory of Relativity (Einstein)
einsteinpapers.press.princeton...
The Foundation of the General Theory of Relativity (Albert Einstein)
einsteinpapers.press.princeton...
Cosmological Considerations in the General Theory of Relativity
einsteinpapers.press.princeton...
Einstein Wrongly Criticizes Alexander Friedmann
einsteinpapers.press.princeton...
Alexander Friedmann Corrects Einstein
einsteinpapers.press.princeton...
Einstein Admits his Mathematical Mistake
einsteinpapers.press.princeton...
The Field Equations of Gravitation
einsteinpapers.press.princeton...
George Gamow
en.wikipedia.org/wiki/George_G...
Mach’s Principle
en.wikipedia.org/wiki/Mach%27s...
Equivalence Principle
en.wikipedia.org/wiki/Equivale...
Sean Carroll and William Press Paper
preposterousuniverse.com/wp-co...
Support MinutePhysics on Patreon! patreon.com/minutephysics
Link to Patreon Supporters: minutephysics.com/supporters
MinutePhysics is on twitter - @minutephysics
And facebook - facebook.com/minutephysics
And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
Свежие видео
Случайные видео