Haber–Bosch process and parachute: what they have in common

1. Step 1. Haber–Bosch process — is used in — Ammonia. The Haber–Bosch synthesis.
2. Step 2. Ammonia — is made of — Hydrogen. Hydrogen.
3. Step 3. Hydrogen — is used in — Airship. Zeppelins were filled with hydrogen.
4. Step 4. Airship — evolved from — Hot air balloon. A steerable balloon.
5. Step 5. Hot air balloon — is made of — Silk. The Montgolfier balloon was fabric lined with paper.
6. Step 6. Silk — is material for — Parachute. The canopy is silk.

Open Evothings