Car navigator and parachute: what they have in common

1. Step 1. Car navigator — uses — GPS (satellite navigation). GPS.
2. Step 2. GPS (satellite navigation) — is part of — Reusable rocket. Navigation during landing.
3. Step 3. Reusable rocket — includes — Space Shuttle. The Shuttle was the first reusable spacecraft: it landed like a plane.
4. Step 4. Space Shuttle — has part — Heat shield. Heat-shield tiles.
5. Step 5. Heat shield — is part of — Vostok 1. A spherical descent capsule with a heat shield.
6. Step 6. Vostok 1 — has part — Parachute. Gagarin landed by parachute.

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