Rebar and archimedes’ screw: what they have in common

1. Step 1. Rebar — is part of — Reinforced concrete. Reinforcement.
2. Step 2. Reinforced concrete — is material for — Sleeper. Reinforced concrete sleepers.
3. Step 3. Sleeper — is part of — Railway track. Sleepers.
4. Step 4. Railway track — is used in — Steam locomotive. It runs on rails.
5. Step 5. Steam locomotive — has part — Crank. Connecting rods and cranks carry the piston stroke to the wheels.
6. Step 6. Crank — is part of — Archimedes’ screw. A handle or rotary drive.

Open Evothings