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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Superman --How far off topic ya wanna go?
From: Frank Reed CT
Date: 2004 Jul 24, 15:24 EDT
From: Frank Reed CT
Date: 2004 Jul 24, 15:24 EDT
Bill wrote:
"Direction around earth will not matter, only acceleration. Lorentz Transformations are, "A
simple exercise left to the reader." <G>"
LOL. Very nice.
And NOT 100% irrelevant to marine navigation. GPS actually has to take into account the gravitational and velocity-dependent time dilation for those satellites way up there. Time runs faster up there because the satellites are out of the deeper part of the Earth's gravitational well... and time runs slower because the satellites are travelling at high speed. Yet another exercise for th reader to figure out which time factor wins out. <g>
Frank R
[ ] Mystic, Connecticut
[X] Chicago, Illinois
"Direction around earth will not matter, only acceleration. Lorentz Transformations are, "A
simple exercise left to the reader." <G>"
LOL. Very nice.
And NOT 100% irrelevant to marine navigation. GPS actually has to take into account the gravitational and velocity-dependent time dilation for those satellites way up there. Time runs faster up there because the satellites are out of the deeper part of the Earth's gravitational well... and time runs slower because the satellites are travelling at high speed. Yet another exercise for th reader to figure out which time factor wins out. <g>
Frank R
[ ] Mystic, Connecticut
[X] Chicago, Illinois
