Cheese mould and greenhouse: what they have in common

1. Step 1. Cheese mould — is part of — Cheese press. A perforated mould.
2. Step 2. Cheese press — uses — Screw. A screw press.
3. Step 3. Screw — is used in — Archimedes’ screw. A rotating helical surface lifts water.
4. Step 4. Archimedes’ screw — is used in — Irrigation. The Archimedes’ screw lifted water for irrigation.
5. Step 5. Irrigation — is used in — Greenhouse. Watering plants.

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