Centrifugal governor and car: what they have in common

1. Step 1. Centrifugal governor — evolved into — Cruise control. Early systems were a development of the centrifugal governor.
2. Step 2. Cruise control — has part — Speedometer. It compares with the speed reading.
3. Step 3. Speedometer — is part of — Dashboard. A speedometer.
4. Step 4. Dashboard — is part of — Car. Gauges.

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