Cheese press and car: what they have in common

1. Step 1. Cheese press — uses — Screw. A screw press.
2. Step 2. Screw — is used in — Jack. A screw jack.
3. Step 3. Jack — uses — Hydraulics (Pascal’s law). A hydraulic jack.
4. Step 4. Hydraulics (Pascal’s law) — is used in — Power steering. Hydraulic power steering.
5. Step 5. Power steering — is part of — Car. Power steering.

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