Shortest Path Between Two Points On A Sphere
23:07
The Hanging Chain (Catenary) Problem
8:31
Shortest Distance Path Between Two Points On A Plane
29:42
Why 4d geometry makes me sad
16:17
The clever way curvature is described in math
23:37
To Master Physics, First Master The Rotating Coordinate System
17:43
Matrix Proof: det(exp A) = exp(Tr A)
31:10
the geometry of the third derivative
25:23