Plaster of paris powder and plumbing: what they have in common

1. Step 1. Plaster of paris powder — is material for — Plaster cast. Calcium sulfate hardens with water.
2. Step 2. Plaster cast — is made of — Lime. Plaster of Paris is calcium sulfate.
3. Step 3. Lime — is material for — Cistern. The walls were coated with lime plaster against leaks.
4. Step 4. Cistern — is part of — Aqueduct. Distribution reservoirs.
5. Step 5. Aqueduct — works like — Plumbing. An aqueduct brings water to a city, plumbing distributes it inside; Minoan pipes are older than the Roman aqueducts.

Open Evothings