Thanks to Volkswagen for supporting this video - http://vwoa.us/160kehn
And check out Aatish Bhatia's excellent physics blog - http://www.empiricalzeal.com/

Volkswagen would like you to know that every new Volkswagen comes with no-charge scheduled maintenance for the first two years or 24,000 miles.

For more on time-travel, here are some works by physicist and time-lord Sean Carroll:

Rules for time-travellers - http://blogs.discovermagazine.....com/cosmicvariance/2

Learn more about time and time-machines in his book From Eternity to Here - http://preposterousuniverse.com/eternitytohere/

Visualizations of the spinning universe - http://iopscience.iop.org/1367....-2630/15/1/013063/me

An engaging talk on the Paradoxes of Time Travel - https://vimeo.com/11917849

MinutePhysics is on Google+ - http://bit.ly/qzEwc6
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And twitter - @minutephysics

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.

Created by Henry Reich Created by Henry Reich