On Mar 28, 8:52 pm, PD <TheDraperFam...@gmail.com> wrote: On Mar 28, 1:15 pm, isosceles <q2k...@execs.com> wrote: incredible these high ranked are forcing me to understand relaticity by not understanding as for instance in this thread here http://groups.google.com/group/sci.physics.relativity/msg/823776666cf... they insist, that in order for me to understand