Thanks to everyone who supports MinutePhysics on Patreon! www.patreon.com/minutephysics Link to Patreon supporters here: www.minutephysics.com/supporters.html This video is about the definition of a day, and how it applies (or not) on the sun. Solar day, sidereal day, universal coordinated time (UTC) day, etc. Length of a day. Music by Nathaniel Schroeder, www.soundcloud.com/drschroeder REFERENCES: Solar rotation: en.wikipedia.org/wiki/Solar_rotation Gravitational Time Dilation: en.wikipedia.org/wiki/Gravitational_time_dilation UTC Day: en.wikipedia.org/wiki/Universal_Time#Versions XKCD What-If about being transported to the sun for an instant: what-if.xkcd.com/115/ Reference from what-if about time to 2nd degree burns: arcadvisor.com/faq/threshold-incident-energy-second-degree-burn Oxygen on the sun: astronomy.stackexchange.com/questions/12381/what-happens-to-oxygen-produced-on-the-sun-or-other-stars Combustion in space: www.fs.fed.us/rm/pubs\_other/rmrs\_2010\_mcallister\_s001.pdf MinutePhysics is on Google+ - bit.ly/qzEwc6 And facebook - 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

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