On 24/09/2011 15:08, RussellMc wrote: > I Ns have some mass they travel< LS. > If N's have negative mass they travel FTL > Another suggestion is that Neutrino mass is positive, but on the=20 Imaginary Axis. i.e Square root -1 However an Almost zero negative mass Neutrino would seem to go at speed of=20 light, unless you measured very carefully. A higher energy might imply a=20 more negative mass thus more noticeably faster than speed of light. I saw someplace some ask if Neutrinos might be the hypothetical Tachyons. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .