Learn physics by playing with it

How things move, why they move, and what stays the same. Each lesson starts from one question: you guess, run the simulation, then see why.

Kinematics is ready. Dynamics and Energies are coming soon.

Ripples, sound and resonance — one set of ideas that describes every wave there is.

Heat, temperature and gases — what happens when you zoom out to billions of particles.

Charges, circuits and fields — the physics that powers everything you plug in.

Light bending, bouncing and focusing — from a straw in a glass to fibre optics.

Atoms, quanta and nuclei — where everyday intuition finally runs out.