Afterburner and smart meter: what they have in common

1. Step 1. Afterburner — is part of — Jet fighter. An afterburner.
2. Step 2. Jet fighter — has part — Radar. A radar.
3. Step 3. Radar — works like — Parking sensor. A parking sensor, like radar, catches a reflected signal — only ultrasonic.
4. Step 4. Parking sensor — has part — Microcontroller. A microcontroller calculates the distance.
5. Step 5. Microcontroller — is part of — Smart meter. A microcontroller does the metering.

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