Hook spur and turbine: what they have in common

1. Step 1. Hook spur — is part of — Corkscrew. A rest on the bottle neck for the lever.
2. Step 2. Corkscrew — uses — Screw. A spiral.
3. Step 3. Screw — is used in — Propeller. A propeller “screws” itself into the water, like an Archimedes’ screw.
4. Step 4. Propeller — is part of — Ocean liner. Propellers.
5. Step 5. Ocean liner — has part — Turbine. Large liners run on steam turbines.

Open Evothings