Rope sheath and watt steam engine: what they have in common

1. Step 1. Rope sheath — is part of — Climbing rope. It protects the core from abrasion.
2. Step 2. Climbing rope — evolved from — Rope. A rope.
3. Step 3. Rope — evolved into — Wire rope. A steel counterpart of rope.
4. Step 4. Wire rope — is part of — Mine hoist. Mine ropes were the first use of wire rope.
5. Step 5. Mine hoist — has part — Watt steam engine. Steam winding engines.

Open Evothings