The sun rises in the east, the moon rises in the east, and the stars rise in the east... but solar eclipses, oddly, come from the west. If total eclipses are caused by the sun and the moon, why don't they behave like the sun and the moon? This Product is supported by the NASA Heliophysics Education Activation Team (NASA HEAT), part of NASA’s Science Activation portfolio. The material contained in this document is based upon work supported by a National Aeronautics And Space Administration (NASA) grant or cooperative agreement. Any questions, findings, conclusions or recommendations expressed in this materials are those of the author and do not necessarily reflect the views of NASA. Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich ... https://www.youtube.com/watch?v=ujYYlXP12m4

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 ... https://www.youtube.com/watch?v=sAMlGyaUz4M