A rotational-dynamics sandbox built with Three.js. Watch a classic spinning top precess in a wobbling cone before it topples, or spin up a gimbal-mounted gyroscope and nudge it to see torque turn into sideways precession instead of a fall.
Spin0 RPM
Tilt Angle0.0°
Precession0°/s
Est. Topple--
Spin0 RPM
Precession0°/s
Torque0.00
FPS--
2600
1.00
8.0°
2200
2.5
0.30
Press Space to launch the top — watch it precess in a cone, then topple as spin decays · Drag to orbit · Scroll to zoom