How can a jigsaw have two distinct solutions?
30:15
The Bingo Paradox: 3× more likely to win
17:58
This new type of illusion is really hard to make
21:29
What if you just keep zooming in?
20:11
Search for the mythological Klein-ing Frame
14:09
What was the first (known) maths mistake?
29:42
Why 4d geometry makes me sad
19:29
The mathematically impossible ball that shouldn’t exist.
14:47