Think deeply about simple things
12:29
Calculating the Golden Ratio Geometrically
19:27
A mathemagical card trick!
13:53
Who cares about complex numbers??
12:12
Paying cash: why is it cheaper?
58:20
Think Fast, Talk Smart: Communication Techniques
1:56:02
The Best of Mozart
16:41
What is the basic building block of all mathematics? (A surprising answer!)
17:50