Touchpad and parachute: what they have in common

1. Step 1. Touchpad — is part of — Laptop. A touchpad.
2. Step 2. Laptop — has part — Motherboard. All the laptop's chips sit on the motherboard.
3. Step 3. Motherboard — is made of — Fibreglass. The board is fibreglass laminate.
4. Step 4. Fibreglass — is material for — Heat shield. Ablative shields are fibreglass with phenolic resin.
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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