Screwdriver and kite: what they have in common

1. Step 1. Screwdriver — uses — Screw thread. It drives screws.
2. Step 2. Screw thread — is used in — Screw-cutting lathe. The lathe cuts precise standard threads.
3. Step 3. Screw-cutting lathe — evolved from — Lathe. Maudslay added a lead screw and a slide rest.
4. Step 4. Lathe — has part — Rope. The bowstring wraps around the workpiece and turns it.
5. Step 5. Rope — is part of — Kite. The line holds the kite and passes the tension to the hand.

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