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Interactive video lesson plan for: What is the Purpose of Life? (Big Picture Ep. 5/5)

Activity overview:

This video is about how life arose and what its main function or purpose in the universe seems to be. Thanks to http://www.audible.com/minutephysics for supporting this video, and to Sean Carroll for collaborating on it!

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 life arose and what its main function or purpose in the universe seems to be. Throughout the universe there is a driving tendency for entropy to increase and free energy to be used up; however, sometimes there is some sort of barrier holding back further potential increase in entropy - these entropically favored but not directly possible reactions (like hydrogen nuclei fusing to become helium, or carbon dioxide reacting with hydrogen to form methane and water), *can* be achieved by larger systems, often complex or complicated, that allow multi-step reaction chains that ultimately lead to the entropically favored state. These systems, (stars, whose nuclei foster conditions amenable to fusion of hydrogen into helium, and life, which fosters conditions amenable to hydrogenating carbon dioxide) are naturally entropically favored, once they arise. And thus the purpose of both life, and stars, can be seen, in the context of the universe, as being a catalyst system that helps facilitate increases in entropy that are not otherwise possible.

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

REFERENCES & ADDITIONAL INFORMATION

How Life Arose (Hydrogenating CO2 quote): https://blogs.scientificamerican.com/observations/how-life-arose-on-earth-and-how-a-singularity-might-bring-it-down/


Sean’s blog on this topic: https://www.preposterousuniverse.com/blog/2010/03/10/free-energy-and-the-meaning-of-life/


Michael Russell article: http://science.sciencemag.org/content/302/5645/580.summary


The molecular formula for Fructose: https://en.wikipedia.org/wiki/Fructose


Adenosine Triphosphate (aka ATP): https://en.wikipedia.org/wiki/Adenosine_triphosphate




Hydrogen Fusion Reaction Chain: http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/fusion.html
Richard Pogge (Ohio State University) on Stellar evolution: http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit2/lowmass.html
Stellar evolution lecture notes: http://astro.physics.uiowa.edu/~kaaret/s09/L14_starsevolve.pdf
Stellar evolution wikipedia: https://en.wikipedia.org/wiki/Stellar_evolution

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

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



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

Tagged under: physics,minutephysics,science

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