On Sat, 02 Jun 2007 11:53:18 +1200, Dr Bruce Griffiths wrote: >Bill Beam wrote: >> Mike, >> >> I was afraid someone would say 'Riemann tensor' >> The problem with the Riemann tensor is that I don't >> think that anyone here can write in down in detail >> for this problem (let alone solve it). I surely can not. >> >> I also don't think that anyone here is ready for the >> idea that there is no such thing as gravitational force, >> and that in the absence of any other force everything >> is in free fall. World lines and geodesics, oh my! >> (inside joke). >> >> >Surely its not necessary to write down the detailed Riemann Tensor for >this simple case?
Not with Keplers laws available. (As stated.) >Surely the Schwarzchild metric is a good approximation to situation of a >test mass orbiting the Earth? Keplers second law is good enough. >If so, then perhaps the methods espoused by Wheeler can be used to >derive the orbits? In every case where I have reinvented the wheel it has come out round with a hole in the center for the axle. I don't do wheels anymore. Bill > >Bruce > Bill Beam NL7F -- Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.467 / Virus Database: 269.8.0/818 - Release Date: 5/25/2007 12:32 PM _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts