The University of Virginia Think of this site as a radio call-in program that's being held on the WWW instead of the radio. If you ask how something works, using the button below, I'll try to provide an explanation. Please let me know what you think about this site.
Blue light causes the photoconductor to conduct.
When you use white light in a xerographic copier, it's the blue and green portions of the light that usually do the copying. The red is wasted. There don't appear to be isolated poles in our universe, or at least none have been found. That's just the way it is. As a result of this situation, the only way to create magnetism is through its relationship with electricity.