5 steps · 5 live
Mechanics foundations
From a thrown ball to orbiting satellites: forces, energy and momentum in five steps.
Learning paths
Short sequences of simulators that build on each other. Work through them in order; each lab ends with a challenge you can check.
5 steps · 5 live
Oscillations and waves
Start with one swinging mass and end with interference, resonance and the Doppler shift.
4 steps · 4 live
Electricity and circuits
Charges and fields, then induction, then the circuits that put them to work.
5 steps · 5 live
How chemical change happens
Particles collide, reactions reach balance, and acids, bases and batteries follow the same rules.
5 steps · 5 live
Heat, gases and fluids
Energy moving as heat, gases under pressure, and liquids that push back.
3 steps · 3 live
From algorithms to systems
Core algorithms and data structures, then how real systems are built and how card payments travel through them.