Factory and micrometer: what they have in common

1. Step 1. Factory — has part — Arkwright’s water frame. Arkwright’s first factory at Cromford.
2. Step 2. Arkwright’s water frame — uses — Cotton. It spins cotton.
3. Step 3. Cotton — is used in — Cotton gin. Cleaning cotton.
4. Step 4. Cotton gin — uses — Interchangeable parts. Whitney was one of the promoters of interchangeable parts.
5. Step 5. Interchangeable parts — uses — Micrometer. Precise measurement ensures interchangeability.

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