Salt and incandescent light bulb: what they have in common
- Step 1. Salt — is material for — Bread. Flavour and strengthening of the gluten.
- Step 2. Bread — uses — Bread machine. Baking at home.
- Step 3. Bread machine — has part — Heating element. A heater.
- Step 4. Heating element — works like — Incandescent light bulb. A lamp and a heater use the same effect — a conductor heated by current; they differ in purpose, light or heat.