Friction - Good or Bad?
4:50
King Solomon's Circles
4:54
Ice-cream Stick Slide Rule
3:50
Impossible folding paper problem
5:49
The Magical, Mystical, Mind-boggling Ames Window
5:23
How to Make a Square Egg !
6:06
Refrigerator - How Does It Work?
22:59
The Dome Paradox: A Loophole in Newton's Laws
23:40