Prestressed concrete and internal combustion engine: what they have in common

1. Step 1. Prestressed concrete — has part — Wire rope. Tensioned tendons.
2. Step 2. Wire rope — is part of — Mine hoist. Mine ropes were the first use of wire rope.
3. Step 3. Mine hoist — has part — Watt steam engine. Steam winding engines.
4. Step 4. Watt steam engine — evolved into — Internal combustion engine. The combustion engine inherited the “cylinder — piston — crank” layout from the steam engine, moving combustion inside the cylinder.

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