Electricity is the movement of electrons from attom to atom but how are streams of electrons shot through the air to hit a phosphor screen in a TV or monitor by an electron gun? I have heard of electrical arc's but when those are preformed there are usually sparks going every where so I know it doesn't use an arch to reach the screen or to remove the elctrons from the atom. I just don't see how an electron can be removed from it's atom to fly throught the air and make it to the screen. In electricity the same electrons are "recycled" over and over again throught the circuit by using the electron present in the conductor. But how the the atoms get their electrons back after having them shot off by an electron gun? How does the electron gun take away an atoms electron with out replacing it with another one immetiately? How can you recycle the electrons once they hit the screen back into the atoms used for the electron gun? And where do the electrons go after they hit the phosphor to light it up? They obvioulsy don't build up, so do they just fall off? And to top off that pile of questions: Is the inside of a CRT a vaccum? Because if it isn't then how do the elements (gasses and dust) not interfere with the electons to prevent them from hitting the screen and using them for themselves? I would LOVE to hear a good explanation to this.