Why there are no 3D complex numbers
15:21
Why π^π^π^π could be an integer (for all we know!).
13:55
Imaginary numbers aren't imaginary
19:14
The strange cousin of the complex numbers -- the dual numbers.
22:56
Visualizing 4D Pt.1
21:27
Derivation of the Euler-Lagrange equations
9:09
One Photon In, TWO Photons Out
13:59
Imaginary Numbers are Not "Imaginary"! In 5 Levels of Complexity
10:39