Published on February 21, 2017
London Bridge has already been rebuilt twice! But what happened to the bridges that came down?
Also, explore a map of the big bang!
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Minute Physics provides an energetic and entertaining view of old and new problems in physics — all in a minute!
Music by Nathaniel Schroeder
Thanks to Nima Doroud for contributions and to Perimeter Institute for support.
Created by Henry Reich