Today after work I read a story about rare upward lightning which sometimes occurs during storms. In the comments below (I always read the comments because they interest me and I sometimes learn something) and the person stated that the earth was like a generator. So I thought about it some and searched for something else in relation to getting energy from the ionosphere as I attempted to think of everything around me as a circuit board with components. When I conducted that search someone else claimed that the atmosphere is like a capacitor. That made a bit of sense to me. So I was reminded of a Tesla patent from 1901 that I read recently and was fascinated by it to the point that I set up a little experiment using my garage roof as a test and it produced a third of a volt. I guess what I'm trying to figure out is this question: If you assume that the atmosphere is indeed a capacitor or similar to one then how would you go about trying to tap it slowly as opposed to a quick discharge such as lightning? Maybe raise a rod high into the air connected to a decent ground with some sort of resistor or diode attached to it with another wire coming down as your positive lead? I'm new to all of this sort of thing and perhaps I'm like the little kid who keeps asking his or her parents 'Why?', 'How?', 'What if?'. Anyway, here's a little video of my garage roof experiment.