Does anyone have any experience with using flocking material inside a Dob? Would you recommend it?
You are right. They never do. It is really weird. If you inspect yearly bring batteries, and filters for the heating, they rarely change those either.
Lightning is caused by a build up of opposite (positive and negative) electrical charges. When the charges get strong enough, there is lightning flashing to equalize the charges again. If the opposing charges are in the earth and the clouds (as opposed to cloud to cloud) the lightning flashes between clouds and earth when the charges build up enough. Lightning rods stop this from happening by dispersing the charge in the earth slowly into the sky, thus keeping the opposing forces from reaching the flash point. The opposite end of the lightning rod you see on a building is an attached wire running to and buried deeply into the ground.