Nice Capacitor, don't let the physics kids get a hold of that one!
not that they'd know how to charge it ... but still.
Al:
I think it has something to do with the fact that as you increase frequency the current has more and more of a tendency to flow near the edges of the conductor. at high frequencies the Skin effect effectively increases the resistance of the conductor lowering the possiblity of damage to the body.
heres a webpage I found the info on
http://whatis.techtarget.com/definit...541369,00.html