Pinhole and data centre: what they have in common

1. Step 1. Pinhole — is part of — Camera obscura. It projects an inverted image.
2. Step 2. Camera obscura — evolved into — Camera. A camera is a camera obscura with a light-sensitive layer.
3. Step 3. Camera — has part — Lens. A camera’s lens.
4. Step 4. Lens — is part of — Planetarium. Projectors.
5. Step 5. Planetarium — is made of — Concrete. Zeiss’s first dome was thin concrete.
6. Step 6. Concrete — is material for — Data centre. The building is concrete.

Open Evothings