Black powder charge and router: what they have in common

1. Step 1. Black powder charge — is part of — Rocket. Fuel that produces a jet when burned.
2. Step 2. Rocket — includes — Multistage rocket. A multistage rocket is a rocket that drops its empty tanks on the way.
3. Step 3. Multistage rocket — is used in — Space probe. Launch.
4. Step 4. Space probe — has part — Radio module and antenna. Communication with Earth.
5. Step 5. Radio module and antenna — is part of — Router. A Wi-Fi access point.

Open Evothings