Top and bottom halves of a nesting doll and screw press: what they have in common

1. Step 1. Top and bottom halves of a nesting doll — is part of — Matryoshka. Turned parts of the body.
2. Step 2. Matryoshka — uses — Lathe. Turned on a lathe.
3. Step 3. Lathe — evolved into — Screw-cutting lathe. Maudslay added a lead screw and a slide rest.
4. Step 4. Screw-cutting lathe — has part — Lead screw. The lead screw moves the cutting tool.
5. Step 5. Lead screw — uses — Screw. A lead screw is a screw.
6. Step 6. Screw — is used in — Screw press. The force is produced by turning a screw.

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