| Help support MinuteEarth - http://subbable.com/minuteearth MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Get a free audiobook at http://bit.ly/ZEAtPh Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions. |
| Views: 424668 | 2013-07-31 |