Perpetual Skislope
the hollow room writes: "How about skiing on a never ending slope? A story at New Scientist suggests that some fool is going to try to build one of these. Built like a huge tilted record player, it can spin at up to 30 km/h.
Any takers?"
Professional skiiers use this to hone their skills and perfect their form! :) :)
Newbies also uses this to learn how to ski... I know of some places in Holland (of all places) that they have this - It's like another post here says, it's a big rug you ski on, the instuctor is at the bottom directly in front of you, telling you what to do...
Never tried it myself though. I don't plan to turn pro, but I do enjoy the occasional trip to France to ski the alps
Any technology distinguishable from magic, is insufficiently advanced.