Explore the physics of motion
Smash two balls together! Change their size and speed to see what happens when things crash.
Forces & MomentumDrop a ball and watch it bounce! Turn up gravity to make it fall faster, or make it super bouncy.
Gravity & EnergyThree objects in space pulling on each other with gravity. Watch them dance in crazy orbits!
Gravity & ChaosA tiny space probe flies past a planet and speeds up — just like real NASA missions!
Orbital MechanicsTwo swinging arms connected together. Looks simple, but tiny changes make it go wild!
Chaos TheoryA chain of masses connected by springs. Watch waves travel through the chain!
Hooke's Law & WavesLaunch a ball at any angle! See how far it flies and how drag changes everything.
Kinematics & DragFire a cannonball from a mountaintop. Go fast enough and it orbits the whole planet!
Orbital MechanicsRoll a ball down a ramp with gravity and friction. See how angle and friction affect the slide!
Forces & Friction