Cable-stayed bridge and cannon: what they have in common

1. Step 1. Cable-stayed bridge — has part — Wire rope. Stay cables.
2. Step 2. Wire rope — is part of — Tensile structure. Cables.
3. Step 3. Tensile structure — works like — Sail. Stretched fabric working in tension.
4. Step 4. Sail — is part of — Clipper. A huge area of sail.
5. Step 5. Clipper — evolved from — Galleon. The sailing fleet developed towards speed.
6. Step 6. Galleon — has part — Cannon. Cannons on the decks.

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