I learned how to make a circuit all you need is a light bulb (load)a battery (source) and two weirs(path).
I oslo learned you can not make a swatch with a weir cardboard tinfoil and a light.
The way I can put a switch in my pinball machine is when the ball goes down it will hate the swatch tern on the light and it will say game over.
how to mack a light bulb light
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