Fuel injection and radar: what they have in common

1. Step 1. Fuel injection — is used in — Diesel engine. A diesel is a fuel-injection engine.
2. Step 2. Diesel engine — is part of — Submarine. Diesel-electric submarines.
3. Step 3. Submarine — has part — Sonar. Underwater acoustics.
4. Step 4. Sonar — works like — Radar. The same echolocation principle: sound in water instead of radio waves.

Open Evothings