Loom heddle shafts and turbine: what they have in common

1. Step 1. Loom heddle shafts — is part of — Loom. They lift groups of warp threads.
2. Step 2. Loom — evolved into — Power loom. A mechanized loom.
3. Step 3. Power loom — has part — Cam. Cams lift the heddles.
4. Step 4. Cam — is part of — Trip hammer. Cams on the shaft lift the hammer.
5. Step 5. Trip hammer — has part — Water wheel. The shaft was turned by a water wheel.
6. Step 6. Water wheel — evolved into — Turbine. The water turbine evolved from the water wheel.

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