Sputnik 1 and rock drill: what they have in common

1. Step 1. Sputnik 1 — uses — R-7 rocket. Launched by an R-7 rocket.
2. Step 2. R-7 rocket — is made of — Kerosene. The fuel is kerosene.
3. Step 3. Kerosene — is used in — Ramjet. The fuel is kerosene.
4. Step 4. Ramjet — uses — Compressed air. The air is compressed by the oncoming flow.
5. Step 5. Compressed air — is used in — Rock drill. Pneumatics.

Open Evothings