Nitrogen and syringe: what they have in common

1. Step 1. Nitrogen — is material for — Ammonia. Nitrogen from the air.
2. Step 2. Ammonia — is made of — Hydrogen. Hydrogen.
3. Step 3. Hydrogen — is material for — Bubble chamber. The working medium is superheated liquid hydrogen.
4. Step 4. Bubble chamber — has part — Piston. It releases pressure.
5. Step 5. Piston — is part of — Syringe. A plunger.

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