One to write a paper claiming that light is a pig whitey invention, one to organize a Darkness Studies program, and one hundred to protest the Diablo Canyon Nuclear Generating Station.
This topic was resumed from last week's discussion, but is incomplete pending resolution of some action items. It will be continued next week. Meanwhile . . .
That depends on the speed of the change and the mass of the bulb. Or vice versa, of course. It just might be easier to leave the bulb and change the room. It's all relative.