Aqueduct and autoclave: what they have in common

1. Step 1. Aqueduct — works like — Sewerage. Both systems carry water by gravity through channels: one drains waste, the other supplies water; the drains of Mohenjo-daro are older than the Roman aqueducts.
2. Step 2. Sewerage — is used in — Flush toilet. Draining the waste.
3. Step 3. Flush toilet — has part — Valve. The cistern’s float valve.
4. Step 4. Valve — includes — Safety valve. A kind of valve.
5. Step 5. Safety valve — is part of — Autoclave. A safety valve releases pressure.

Open Evothings