Radiator and elevator: what they have in common

1. Step 1. Radiator — uses — Heat transfer. Heat is given off to the air through the honeycomb.
2. Step 2. Heat transfer — is used in — Davy lamp. The gauze draws off heat and stops the flame.
3. Step 3. Davy lamp — is used in — Coal mine. Protection against methane explosions.
4. Step 4. Coal mine — has part — Mine hoist. Hoisting.
5. Step 5. Mine hoist — has part — Wire rope. Mine ropes were the first use of wire rope.
6. Step 6. Wire rope — is part of — Elevator. The car hangs on cables.

Open Evothings