Dial with pointer and jacquard loom: what they have in common

1. Step 1. Dial with pointer — is part of — Kitchen scale. A weight indicator.
2. Step 2. Kitchen scale — has part — Spring. The load stretches a spring.
3. Step 3. Spring — is part of — Automaton. The mainspring stores the energy.
4. Step 4. Automaton — inspired — Jacquard loom. Vaucanson, the maker of automata, built an automatic loom whose ideas Jacquard used.

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