I think it has been 'rediscovered' many times, but it's hard to market, since it requires a special platform to run on (even if it's just a sheet-o-metal). Sor

I think it has been 'rediscovered' many times, but it's hard to market, since it requires a special platform to run on (even if it's just a sheet-o-metal). Sorta like how you can build a hovercraft out of a leaf blower and some plywood, but generally not used in every day life, despite the coolness. If we could have long, smooth sheets of copper laid out, I'd be pretty thrilled; might need to grab an asteriod to make it cheap enough, though. Also, nice nick; possibly the most apropos I've seen in a while :)