Shoelaces and parachute: what they have in common
- Step 1. Shoelaces — is part of — Trainers. Laces.
- Step 2. Trainers — is made of — Vulcanized rubber. The sole.
- Step 3. Vulcanized rubber — is material for — Spacesuit. The pressure bladder is rubber.
- Step 4. Spacesuit — is used in — Vostok 1. The SK-1 spacesuit.
- Step 5. Vostok 1 — has part — Parachute. Gagarin landed by parachute.