Ah, OK, I was wrong about the earthing . . .
Would it be true to say that a Faraday cage will shield from an electrical field but not a magnetic field - Wikipedia says that a compass will still work inside a Faraday cage for example.
I'm not sure that it is right to draw a distinction between...
Wristwatches sometimes used to have the movement encapsulated in a soft iron housing to prevent the movement, particularly the steel balance spring, becoming magnetised. In the case of the IWC Mark 11 used by the RAF after WW2 this took the form of an iron ring around the movement with an iron...
A friend of mine said that if the ignition light bulb is blown then the alternator won't charge the battery. This sounds ridiculous; but I don't know enough about auto electrics to know whether it true, so I am hoping that someone familiar with this aspect of vehicle electrics can give me...
Hemi has got it just right, the only function of the thermostat is to regulate the flow of coolant to the radiator to maintain the engine at optimum operating temperature, and to do this it is constantly moving in an analogue fashion to be slightly more open or closed within its movement range...
