Electric unicycle and cannon: what they have in common

1. Step 1. Electric unicycle — uses — Gyroscope. Gyro sensors feel the lean, and the wheel rolls to keep the rider up.
2. Step 2. Gyroscope — is part of — Gyrocompass. A gyroscope.
3. Step 3. Gyrocompass — is part of — Ironclad. Steel ships distort a magnetic compass.
4. Step 4. Ironclad — has part — Cannon. Artillery.

Open Evothings