Rocket tube and personal computer: what they have in common

1. Step 1. Rocket tube — is part of — Rocket. The tube in which the charge burns.
2. Step 2. Rocket — evolved into — Liquid-propellant rocket engine. Goddard switched to liquid fuel.
3. Step 3. Liquid-propellant rocket engine — is part of — Lunar module. A descent engine.
4. Step 4. Lunar module — uses — Computer. The Apollo Guidance Computer.
5. Step 5. Computer — includes — Personal computer. A computer.

Open Evothings