> It can be done, by "shaping" the field so that it produces > stability, but it has to be at close quarters. MagLev trains > do it. Howard, odd that I haven't heard of MagLev trains for ages, until you mentioned them, then this happens http://news.bbc.co.uk/1/hi/world/europe/5370564.stm -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist