which one carbon fiber/kevlar is a better non conductor, as i have read many site and they dont relly tell you the non conducting qualities of each materials, many thanks.

Not as you see it, but as a cross-section, I mean - how thick is the layer of graphite/carbon? How many atoms thick?

Some have claimed that using a dimmer to slowly turn on or off an incandescent light bulb would (in a practical sense) allow it to last forever. At last check, there's some light bulb in a Northern California fire station that is said to be burning continuously for about a century.

An expert claimed to have some quantum mechanical explanation, but I never did hear it. Can anyone explain this phenomena in English? Has anyone seen a bulb blow out when not being turned on? (I think I've seen one blow out in the middle of usage -- after about ten minutes -- but I can't swear to it.)