Breadth-first search and watt steam engine: what they have in common

1. Step 1. Breadth-first search — is a kind of — Algorithm. An algorithm.
2. Step 2. Algorithm — is used in — Program control of a machine. A program is a written algorithm.
3. Step 3. Program control of a machine — is used in — Automaton. The sequence of movements is “recorded” in cams and cylinders.
4. Step 4. Automaton — has part — Cam. Cams set the figures’ movements.
5. Step 5. Cam — is part of — Power loom. Cams lift the heddles.
6. Step 6. Power loom — has part — Watt steam engine. Driven by a steam engine.

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