The Plastic Ratio - Numberphile
16:21
The Silver Ratio - Numberphile
15:13
The Golden Ratio (why it is so irrational) - Numberphile
15:51
A New Way to Look at Fibonacci Numbers
5:27
A Sad Moment in American History
17:09
The Perfect Goal Kicking Angle - Numberphile
31:15
That's Not How the Golden Ratio Works
18:55
The Feigenbaum Constant (4.669) - Numberphile
16:29