Ilim Lab

Law of Universal Gravitation: how bodies attract

Change two masses and the distance between them to understand gravitational attraction, equal forces, and the inverse-square law.

All Simulations

Apollo Parachute Descent

Configure Apollo’s parachute descent and see how deployment timing and Euler’s method affect a safe splashdown.

Apollo: Re-entry

Test Apollo return trajectories, hit the safe corridor, and see why mathematics and computation mattered for bringing the capsule home.