Learn Topology in 5 minutes (joke video)
16:51
General relativity--Friedmann Equations 02 [Bianchi identity, Hubble constant, perfect fluids]
12:21
What's a Tensor?
18:16
Who cares about topology? (Inscribed rectangle problem)
20:47
The Concept So Much of Modern Math is Built On | Compactness
6:07
What Is Voltage? (joke video)
8:27
Poincare Conjecture and Ricci Flow | A Million Dollar Problem in Topology
8:37
Intro to Topology - Turning a Mug Into a Doughnut
22:45