
Machines and construction
Why does distance change everything?
Levers & fulcrums
Explore the mechanisms behind historical inventions, from lifting machines and clocks to engines and communication.

Levers & fulcrums

Pulling with pulleys

Screw jack

A pendulum clock

A seconds pendulum clock

Gear a Martian year

Inside a refracting telescope

The field cannon

Inside a piston engine

Flyball governor

Two-thread lockstitch machine

Sending a message on a wave
12 experiments to explore. No account. Just curiosity.