Solve for the magic angle
11:05
Why is πr² the formula for a circle's area?
10:00
False proof 2 + 2 = 5. Can you spot the mistake?
12:46
6 Impossible Puzzles With Surprising Solutions
10:34
find the missing angle!!
9:11
The Turntable Paradox
8:59
What's the largest possible rectangle inside of the 3-4-5 right triangle?
28:44
Transforming A Stainless Steel Bolt Into A Fully Functioning Miniature Lathe Chuck
11:31