Check out the corresponding video I made with Steve Mould for his channel.
   • 3000 ball bearings show crystal defec...  

Thomas Hales’s proof of the Kepler Conjecture.
http://annals.math.princeton.edu/wp-c...

The Kepler Conjecture on wikipedia.
https://en.wikipedia.org/wiki/Kepler_...

Cubic Close Packing on Mathworld.
http://mathworld.wolfram.com/CubicClo...


CORRECTIONS:
None yet. Let me know if you spot anything!

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MATT PARKER: Stand-up Mathematician
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