Radio transceiver and diesel engine: what they have in common
- Step 1. Radio transceiver — is part of — Military radio. A radio unit.
- Step 2. Military radio — has part — Antenna. It needs an antenna.
- Step 3. Antenna — is part of — Radar. An antenna emits and receives.
- Step 4. Radar — works like — Sonar. The same echolocation principle: sound in water instead of radio waves.
- Step 5. Sonar — is part of — Submarine. Underwater acoustics.
- Step 6. Submarine — has part — Diesel engine. Diesel-electric submarines.