Smoking is Powerful

The smoke theory of electricity. which says smoke is the real thing that makes power circuits work because every time you let smoke out of something electrical, it quits working. The bigger the appliance is the thicker the wire is needed to carry the smoke, or, in the case of a complicated device, many thin wires carrying a small amount of smoke. The severity of an electrical problem (when the smoke starts leaking from the equipment) can be judged by the
colour of the escaping smoke. Heavy black smoke is the most serious, with lighter grey smoke usually not as bad.

Just how the smoke works can be easily explained. When you turn on a light switch, the smoke flows into the light bulb with such a force that it gets excited and glows. This sucks up all the dark in the room and turns the smoke black (in the return wiring) This black smoke is used in your toaster, where it falls onto the bread to make it darker. Sometimes when two much smoke is used it will escape out the top of the toaster.

The first industry to cotton onto the smoke theory was the Railways. They noticed that a lot of smoke was escaping from their steam locomotives so they switched to diesel. These also leaked a little, so the trend today is towards the almost leak-proof electric trains.