What Does a 4D Klein Bottle Look Like?
10:54
How Hard Is It To Freeze Flowing Water?
13:08
Paradox of the Möbius Strip and Klein Bottle - A 4D Visualization
21:29
What if you just keep zooming in?
23:22
Hunt for the Elusive 4th Klein Bottle - Numberphile
12:59
Slowing The Speed of Light Down To 2 m/s—What Special Relativity Feels Like
7:01
Is It Possible To Completely Fill a Klein Bottle?
29:42
Why 4d geometry makes me sad
28:32