KidzTube
Welcome
Login / Register

How Entropy Powers The Earth (Big Picture Ep. 4/5)

Thanks! Share it with your friends!

URL

You disliked this video. Thanks for the feedback!

Sorry, only registred users can create playlists.
URL


 Physics   |   Science
 Find Related Videos  added
131 Views

Description

This video is about how we don't just need energy to power our lives, we need *low entropy* energy! Thanks to Google Making and Science for supporting this series, and to Sean Carroll for collaborating on it! His book can be found here: http://www.penguinrandomhouse.com/books/316646/the-big-picture-by-sean-carroll/

Playlist of the full video series: https://www.youtube.com/playlist?list=PLoaVOjvkzQtyZF-2VpJrxPz7bxK_p1Dd2

Link to Patreon supporters here: http://www.minutephysics.com/supporters.html

This video is about how we don't just need energy to power our lives, we need *low entropy* energy! This is also known as "free energy", and one way of thinking about entropy is as the lack of free energy. The sun provides us with useful, low entropy, energy in the form of photons of visible light, which are then absorbed and converted into plants, sugar, complex molecules, etc, before being radiated back into space as heat, which has much higher entropy.

Music for the series was especially composed by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder

REFERENCES & ADDITIONAL INFORMATION

Entropy Balance of Radiation of the Earth system http://www.sciencedirect.com/science/article/pii/0038092X9290097T

Heat balance of global warming/climate change: http://www.skepticalscience.com/4-Hiroshima-bombs-worth-of-heat-per-second.html

More on the Entropy Balance of the Earth System https://www.bnl.gov/envsci/pubs/pdf/2010/BNL-81482-2008-JA.pdf

The Entropy of a Photon Gas: https://en.wikipedia.org/wiki/Photon_gas

Sean's blog: http://www.preposterousuniverse.com/blog/2016/05/11/big-picture-part-four-complexity/

Another article by Sean about complexity and god: https://www.preposterousuniverse.com/writings/dtung/

Sean Carroll: The Big Picture
(more great articles about entropy, etc on his blog http://preposterousuniverse.com)

Interactive Entropy explainer by Aatish Bhatia: http://aatishb.github.io/entropy/



MinutePhysics is on Google+ - http://bit.ly/qzEwc6
And facebook - http://facebook.com/minutephysics
And twitter - @minutephysics

Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

Post your comment

Comments

Be the first to comment






RSS