Learn by doing
Explore, experiment, and build intuition. These interactive tools bring engineering concepts to life—one experiment at a time.
Orbit Lab Orbital mechanics
Take the controls of a satellite. Change its velocity, preview a maneuver, and watch its orbit evolve around Earth in three dimensions.
Runs in your browser · No installation needed
Start with a circular orbit, try a prograde burn, and see how the path changes. Switch to the 3D view to explore a maneuver out of the orbital plane.
Pacing Lab Mechanics & energy
Take on a hilly cycling course—or import your own GPX and choose a segment. Control your power, manage your energy reserve, and discover how pacing changes your finish time.
Runs in your browser · No installation needed
Ride once at a steady 330 W, then try pushing harder on climbs and coasting downhill. Compare your finish times and watch how your energy reserve recovers.
Apex Lab Friction & cornering
Race down a winding descent with one control—the brake lever. Balance braking and cornering within the available tire grip, and find your fastest clean run.
Runs in your browser · No installation needed
Try braking before a bend, then compare with braking during the turn. Watch the traction circle to see how braking and cornering share the same grip limit.
A growing collection of tools for the classroom and your own curiosity.