How Not to Be Wrong: The Power of Mathematical Thinking

Demonstrating The Magnus Effect With Paper Cups

Mechanical 7-Segment Display Made out of Cardboard

Coffee Cup Stirling Engine

Crookes Radiometer

Galton Board: Desktop Probability Machine

This cool little device allows you to visualize the statistical concept of normal distribution.

Turing Tumble: A Mechanical Computer Powered by Marbles

Turing Tumble lets you build real mechanical computers with marbles, switches, and gears.

Wooden Combination Lock

See and learn how the mechanics of a combination lock works with this open lock.