Soyuz and hydraulic press: what they have in common

1. Step 1. Soyuz — has part — Parachute. Landing by parachute.
2. Step 2. Parachute — uses — Drag. The canopy creates drag.
3. Step 3. Drag — is used in — Retractable landing gear. Retracting reduces drag.
4. Step 4. Retractable landing gear — has part — Hydraulic cylinder. Retraction cylinders.
5. Step 5. Hydraulic cylinder — is part of — Hydraulic press. Two cylinders of different diameters.

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