Joystick stick and rocket: what they have in common

1. Step 1. Joystick stick — is part of — Joystick. A hinged lever.
2. Step 2. Joystick — uses — Potentiometer. Position is read with potentiometers.
3. Step 3. Potentiometer — is made of — Nickel. The resistance wire is a nickel alloy.
4. Step 4. Nickel — is material for — Ramjet. The chamber is made of heat-resistant alloys.
5. Step 5. Ramjet — has part — De Laval nozzle. The nozzle accelerates the combustion products.
6. Step 6. De Laval nozzle — is part of — Rocket. A narrowing at the outlet accelerates the gases and increases thrust.

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