Earthquakes, Circles and Spheres - Numberphile
17:09
Perplexing Paperclips - Numberphile
12:11
The Best Way to Pack Spheres - Numberphile
16:39
Way Bigger Than Graham's Number (Goodstein Sequence) - Numberphile
34:06
Matt Parker Reacts to Magic Squares of Squares - Numberphile
14:22
Funny Fractions and Ford Circles - Numberphile
26:36
Epic Circles - Numberphile
12:53
Strange Spinning Tubes - Numberphile
19:22