Jacquard loom and stone tool: what they have in common

1. Step 1. Jacquard loom — was inspired by — Automaton. Vaucanson, the maker of automata, built an automatic loom whose ideas Jacquard used.
2. Step 2. Automaton — has part — Cam. Cams set the figures’ movements.
3. Step 3. Cam — is part of — Trip hammer. Cams on the shaft lift the hammer.
4. Step 4. Trip hammer — evolved from — Hammer. A trip hammer is a hammer lifted and dropped by a water wheel.
5. Step 5. Hammer — evolved from — Stone tool. The first hammer was a stone in the hand.

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