Dartboard wire spider and steam turbine: what they have in common

1. Step 1. Dartboard wire spider — is part of — Darts. A metal mesh of sectors.
2. Step 2. Darts — is made of — Plant fibre. Modern ones are made of compressed sisal.
3. Step 3. Plant fibre — is used in — Loom. Cloth is woven from threads spun from fibres.
4. Step 4. Loom — evolved into — Power loom. A mechanized loom.
5. Step 5. Power loom — has part — Watt steam engine. Driven by a steam engine.
6. Step 6. Watt steam engine — evolved into — Steam turbine. The turbine replaced piston engines in large installations.

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