Paddle steamer and parachute: what they have in common

1. Step 1. Paddle steamer — evolved into — Screw steamship. The propeller proved more efficient than paddle wheels.
2. Step 2. Screw steamship — evolved into — Ocean liner. A large steamship.
3. Step 3. Ocean liner — has part — Ship stabilizer. Stabilizers.
4. Step 4. Ship stabilizer — uses — Lift. Side fins acting as wings.
5. Step 5. Lift — is used in — Paraglider. Lift.
6. Step 6. Paraglider — evolved from — Parachute. A parachute wing.

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