Featuring James Grime... Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor)
More links & stuff in full description below ↓↓↓

Sphere trilogy: http://bit.ly/Sphere_Trilogy

Strange Spheres in Higher Dimensions:    • Strange Spheres in Higher Dimensions ...  
Earthquakes and Spheres:    • Earthquakes, Circles and Spheres - Nu...  

More James Grime on Numberphile: http://bit.ly/grimevideos

James Grime website (you can book him for talks): http://singingbanana.com

Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile

We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outr...

And support from Math For America - https://www.mathforamerica.org/

NUMBERPHILE
Website: http://www.numberphile.com/
Numberphile on Facebook:   / numberphile  
Numberphile tweets:   / numberphile  
Subscribe: http://bit.ly/Numberphile_Sub

Videos by Brady Haran
Editing and animation in this video by Pete McPartlan

Patreon:   / numberphile  

Numberphile T-Shirts: https://teespring.com/stores/numberphile

Brady's videos subreddit:   / bradyharan  

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Sign up for (occasional) emails: http://eepurl.com/YdjL9