Grenade and joystick: what they have in common

1. Step 1. Grenade — uses — Gunpowder. An explosive.
2. Step 2. Gunpowder — is used in — Anti-aircraft gun. Gunpowder propels the projectile.
3. Step 3. Anti-aircraft gun — uses — Radar. Radar guidance.
4. Step 4. Radar — is part of — Jet fighter. A radar.
5. Step 5. Jet fighter — uses — Fly-by-wire. Fly-by-wire.
6. Step 6. Fly-by-wire — uses — Joystick. A sidestick controller.

Open Evothings