Vernier caliper and rope: what they have in common

1. Step 1. Vernier caliper — evolved into — Micrometer. A more precise instrument.
2. Step 2. Micrometer — has part — Shackle. A rigid frame.
3. Step 3. Shackle — is part of — Anchor. The chain mount.
4. Step 4. Anchor — is used in — Anchor windlass. It raises the anchor.
5. Step 5. Anchor windlass — uses — Rope. The anchor cable winds onto the drum.

Open Evothings