Chemical reaction and diesel engine: what they have in common

1. Step 1. Chemical reaction — is used in — Percussion cap. Mercury fulminate explodes when struck.
2. Step 2. Percussion cap — is part of — Cartridge. A primer in the case.
3. Step 3. Cartridge — is part of — Machine gun. Cartridges in a belt.
4. Step 4. Machine gun — is part of — Tank. The Mark I’s machine guns.
5. Step 5. Tank — has part — Diesel engine. Most modern tanks are powered by a diesel (the Mark I had a petrol engine).

Open Evothings