Wicker gondola basket and archimedes’ screw: what they have in common

1. Step 1. Wicker gondola basket — is part of — Blimp. A crew cabin under the envelope.
2. Step 2. Blimp — has part — Propeller. Propellers provide thrust.
3. Step 3. Propeller — evolved from — Archimedes’ screw. The first propellers by Smith and Ericsson were a variation on the Archimedes’ screw.

Open Evothings