Dye and liquid-propellant rocket engine: what they have in common

1. Step 1. Dye — uses — Fermentation. Some dyes (indigo) were obtained by fermenting plants.
2. Step 2. Fermentation — is used in — Ethanol. Alcohol is produced by fermentation.
3. Step 3. Ethanol — is material for — V-2 rocket. The fuel is ethyl alcohol.
4. Step 4. V-2 rocket — is a kind of — Liquid-propellant rocket engine. A liquid-propellant engine.

Open Evothings