Crimped cap skirt and internal combustion engine: what they have in common

1. Step 1. Crimped cap skirt — is part of — Crown cap. The crimped edge is pressed around the bottle neck.
2. Step 2. Crown cap — is part of — Glass bottle. A cap.
3. Step 3. Glass bottle — includes — Soda siphon. A soda siphon is a strong bottle charged with carbon dioxide.
4. Step 4. Soda siphon — has part — Valve. A valve.
5. Step 5. Valve — is part of — Internal combustion engine. Valves let in the mixture and let out the gases.

Open Evothings