This just happened to me about an hour ago, and it's a weird story, worthy for a good discussion. Just here in my ye ol' desert town, 12AM Getting gas at the local Conoco, and saw: A pickup truck with an upright pole [3' to 1m] about 1" thick, solid steel, capped with a cylinder of mystery (as if a coil would be in it) [near the top (5"x3")] With 1/4" gauge cord shaped into four Loops, at the base of the "antenna" - |||that's what tipped me off that it was for resonance with something.||| And the "antenna" itself, really looked kinda primitive. It was the same type of cord , strung 6 feet forward and 8 inches down, and attached at the truck cab -- ---I would guess that this was an Insulator-resonator Thinkamajigger.-- That's the best I can describe with limited circuits vocab for me to use, and a lot of knowledge of energy patterning :-\ Just got me curious, 'cause at this time of year it's probably someone who's in our County Fair, but hey, then again, maybe it's not, I'm fascinated, I think it could be something very grand, like a lightning rod or gamma radio antenna and down-cycler. I only mention it because it came in a pair of trucks that parked at that gas station at the same time, the other one being a pace car. Maybe some sort of -guessing here- My first hypothesis is to say that it's for the em-resonance of the car as a whole, to harmonize the crankshaft, alternator, with atmospheric magnetism. For what purpose I do not know. Anybody else wanna have a guess at it?