Car and bell: what they have in common

1. Step 1. Car — has part — Dashboard. Gauges.
2. Step 2. Dashboard — has part — Odometer. An odometer.
3. Step 3. Odometer — evolved into — Taximeter. A distance counter with a fare rate.
4. Step 4. Taximeter — has part — Mechanical clock. It measures the time of the ride.
5. Step 5. Mechanical clock — includes — Alarm clock. A clock.
6. Step 6. Alarm clock — has part — Bell. A bell rings.

Open Evothings