Harness and cannon: what they have in common

1. Step 1. Harness — is part of — Paraglider. The pilot’s seat.
2. Step 2. Paraglider — uses — Lift. Lift.
3. Step 3. Lift — is used in — Lateen sail. A fore-and-aft sail works like a wing.
4. Step 4. Lateen sail — is part of — Caravel. Lateen sails.
5. Step 5. Caravel — evolved into — Galleon. Larger and more heavily armed.
6. Step 6. Galleon — has part — Cannon. Cannons on the decks.

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