On 26 May 2011, at 14:52, Jacob Albretsen wrote: > On Thursday 26 May 2011, Jason Van Patten wrote: >>> It is indeed true that the sun moves around the Earth, even today. >>> It's just that when you consider solar and planetary motion from an >>> Earth-centric frame of reference, it's much more difficult to model >>> and predict the paths of bodies, and it doesn't reflect the actual >>> forces that constrain the paths. It would also be easy to choose a >>> frame of reference in which neither the Earth nor Sun were stationary, >>> such as using the moon as the static point. This frame of reference >>> is less useful from the perspective of trying to model the motion, but >>> it would be a useful frame of reference to translate the paths into in >>> order to aim solar collectors or antennas on a future moon base. >>> >>> Motion is all relative, and choosing the frame of reference from which >>> to analyze things is one of the first steps in any physics problem. >>> The frame of reference might change depending on what kind of analysis >>> you're trying to do! >> >> However it is theoretically possible to establish a context from the >> center of existence if you assume that such a point exists. > > And every time we've made that assumption, it's been wrong wrong wrong. >
While we are contemplating deep questions... do you think it is possible to use regressive hypnosis to "remember" what your experience was like in the womb? /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
