Horseshoe und screw press: was sie gemeinsam haben

1. Schritt 1. Horseshoe — ist Teil von — Horseshoe. An iron arc shaped to the hoof.
2. Schritt 2. Horseshoe — nutzt — Nail. It is nailed on.
3. Schritt 3. Nail — nutzt — Wedge. The point of a nail pushes the wood apart.
4. Schritt 4. Wedge — funktioniert wie — Inclined plane. A wedge is a moving inclined plane.
5. Schritt 5. Inclined plane — entwickelte sich zu — Screw. A screw is an inclined plane wrapped around a cylinder.
6. Schritt 6. Screw — wird verwendet in — Screw press. The force is produced by turning a screw.

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