The Four Color Theorem - What Counts as a Proof?
33:03
NP-COMPLETENESS - The Secret Link Between Thousands of Unsolved Math Problems
17:59
How a Hobbyist Solved a 50-Year-Old Math Problem (Einstein Tile)
16:20
The REAL Three Body Problem in Physics
17:03
Braess's Paradox - Equilibria Gone Wild
17:14
The Five Color Theorem (without Kempe chains)
14:18
The Four Color Map Theorem - Numberphile
38:28
A Miraculous Proof (Ptolemy's Theorem) - Numberphile
16:33