Fermentation and sonar: what they have in common

1. Step 1. Fermentation — is used in — Bread. Yeast dough rises through fermentation.
2. Step 2. Bread — uses — Bread machine. Baking at home.
3. Step 3. Bread machine — uses — Microcontroller. Programs.
4. Step 4. Microcontroller — is part of — Parking sensor. A microcontroller calculates the distance.
5. Step 5. Parking sensor — works like — Sonar. Echolocation in air.

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