Silo and turbojet engine: what they have in common

1. Step 1. Silo — works like — Grain elevator. A grain elevator and a silo are tall stores filled from the top.
2. Step 2. Grain elevator — uses — Grain. It stores and transfers grain.
3. Step 3. Grain — is used in — Gristmill. A mill grinds grain.
4. Step 4. Gristmill — uses — Water wheel. A water wheel turns the millstones.
5. Step 5. Water wheel — evolved into — Turbine. The water turbine evolved from the water wheel.
6. Step 6. Turbine — is part of — Turbojet engine. The turbine drives the compressor.

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