The Illumination Problem Numberphile

Featuring Professor Howard Masur from the University of Chicago. Filmed at the Mathematical Sciences Research Institute (MSRI) ...

Extended math version: http://youtu.be/ugbWqWCcxrg?t=2m32s A version for Dummies: https://youtu.be/7u6kFlWZOWg More ...

Featuring James Grime... Check out Jane Street's "Puzzle Page" for great brain teasers ...

Featuring Ben Sparks... See https://brilliant.org/

Featuring Neil Sloane - more details below. Gear Train (episode sponsor) is at https://www.metmo.co.uk/collections/gear-train with ...

Matt Henderson is making lightning in mazes. Check out https://www.kiwico.com/

The Josephus

Featuring Matt Parker... Part 2 (solution) here: https://youtu.be/pasyRUj7UwM More links & stuff in full description below ...

Featuring Dr James Grime... See https://brilliant.org/

James Grime on the Hadwiger–Nelson

Featuring Dan Romik from UC Davis. More footage from this interview soon on Numberphile2. Dan's comprehensive page on this ...

The Great Courses Plus (free trial): http://ow.ly/RqOr309wT7v This video features Alex Bellos. More info and links in full ...

Featuring Ben Sparks... Check out Brilliant (get 20% off their premium service): https://brilliant.org/