I'm sussing out whether or not I'll be able to write a decent paper on the physics of the pedal steel guitar for my physics class. My problem: I cannot find a single reference or resource online. Can the web-trawling masters of TB come to my aid? I'm primarily looking for number-crunchy information about the way the pedals change the tension in the strings, how the slide interacts with the strings and some good illustrated stuff about how the pickups work. I've found plenty of info on the various incarnations of the instrument and it's history, and I won't be able to hit the library until later tonight. Thanks TB!