e is heated up, a string of electrons are emitted. This is the "ray". Because electrons are negative, they are automatically attracted tot he positive anode terminal. Basically, another anode tightens up the string of electrons attracted by the first anode. That ray is then pushed into the vacuum tube and sent in a fine line towards the glass screen of the TV. The screen is covered with phosphorous, a substance that glows when the right amount of light is applied.
             Phosphor can be explained as "any material that, when exposed to radiation (in this case light) reacts in such a way that visible light is emitted" (www.howstuffworks.com, 6). This phosphor absorbs invisible light to make color. The electrons that are produced by the cathode in the CRT represent this invisible beam of radiation. Depending on the type of phosphor, a certain color of light is visible. Different phosphors are used also depending on their "reaction time" after exposed to this radiation. On today's color TV's, three different types of phosphor are used. They contain a chemical makeup that has the ability to produce red, blue, and green lights. In certain combinations, these colors can makeup the images that we see as the end result. Because one beam of electrons is needed to produce each color, the anode and cathode must produce three separate electron groups in order to make these combinations.
             This beam is sent directly to the center of the inside of the TV screen. This electron ray must then be directed and split by colors across the remainder of the screen so that an image may be viewed.
             To do this, the electron rays must be steered. Copper wires are used to do so. They create magnetic fields. Th
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