How Long To Fall Through The Earth?

1mo ago
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Thanks to Audible.com for supporting this video: http://www.audible.com/minutephysics Original video collaboration with Vsauce: https://www.youtube.com/watch?v=jN-Ff... Thanks to everyone who supports MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon supporters here: http://www.minutephysics.com/supporte... Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder REFERENCES Gravity & Spherical Shells: http://hyperphysics.phy-astr.gsu.edu/... More Shell Theorem: https://en.wikipedia.org/wiki/Shell_t... Density inside the earth (Preliminary Reference Earth Model): https://en.wikipedia.org/wiki/File:Ra... Gravitational acceleration inside the earth: https://en.wikipedia.org/wiki/File:Ea... 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