06/07/2026
This is how engineers think:
Use observation + experimentation 🔬
Answer:
Turn ON switch 1 for a few minutes.
Turn it OFF.
Turn ON switch 2.
Enter room:
Bulb ON = switch 2
Bulb OFF but warm = switch 1
Bulb OFF and cold = switch 3
06/05/2026
05/31/2026
05/29/2026