Railway track und computer: was sie gemeinsam haben
- Schritt 1. Railway track — wird verwendet in — Metro. It runs on rails.
- Schritt 2. Metro — nutzt — Tunnelling shield. Metro tunnels were built with shields.
- Schritt 3. Tunnelling shield — nutzt — Hydraulic cylinder. The shield was pushed forward by jacks.
- Schritt 4. Hydraulic cylinder — ist Teil von — Flight simulator. A motion platform.
- Schritt 5. Flight simulator — nutzt — Computer. Modern simulators are computer-based.