- Estreno original
- Episodio anterior S01E43 - Quantum Cryptography Explained
- Número S01E44
- País Estados Unidos
- Género Curiosidades
-
Enlaces externos
Ficha YouTube
-
Última actualización
28 octobre 2022 - 01:34
en 11 bases de datos -
Is energy always conserved?
This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl
When light passes through the universe and is redshifted by the expansion of space itself, how is energy conserved? The stretched light has a longer wavelength and therefore a lower energy. Is energy conserved? If so, where does it go?
Many thanks to Sean Carroll for his wonderful description of this question: http://www.preposterousuniverse.com/blog/2010/02/22/energy-is-not-conserved/
More resources:
http://motls.blogspot.com/2010/08/why-and-how-energy-is-not-conserved-in.html
http://hyperphysics.phy-astr.gsu.edu/hbase/astro/hubble.html
Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2
http://physicsgirl.org/
http://twitter.com/thephysicsgirl
http://facebook.com/thephysicsgirl
http://instagram.com/thephysicsgirl
http://physicsgirl.org/
Creator: Dianna Cowern
Editor: sefd.com , Jabril Ashe
Writer: Sophia Chen
Gravitational Wave Animations: LIGO
Visuals: Pixabay.com
Music: APM and YouTube
Episodios (196)
Series similares (10)
MinutePhysics
Emily's Wonder Lab
