Cistern and particle accelerator: what they have in common

1. Step 1. Cistern — is made of — Roman concrete. Roman cisterns were built of concrete with hydraulic mortar.
2. Step 2. Roman concrete — evolved into — Concrete. A revival of Roman technology.
3. Step 3. Concrete — is material for — Data centre. The building is concrete.
4. Step 4. Data centre — is used in — Large Hadron Collider. A grid for processing data.
5. Step 5. Large Hadron Collider — is a kind of — Particle accelerator. An accelerator.

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