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: It appears to me that you have misstated the result. Your wording is similar to the news story here [http://www.nature.com/news/2010/170210/full/463862a.html], but the actual article here [http://www.nature.com/nature/journal/v400/n6747/full/400849a0.html] says that the acceleration of gravity was measured to a precision of 7 parts per billion. [[User:RSchlafly|RSchlafly]] 12:34, 6 May 2010 (EDT)
: It appears to me that you have misstated the result. Your wording is similar to the news story here [http://www.nature.com/news/2010/170210/full/463862a.html], but the actual article here [http://www.nature.com/nature/journal/v400/n6747/full/400849a0.html] says that the acceleration of gravity was measured to a precision of 7 parts per billion. [[User:RSchlafly|RSchlafly]] 12:34, 6 May 2010 (EDT)
==GPS==
GPS doesn’t use corrections for relativity? Someone should really tell the Joint Program Office at the LA Air Force base, which manages the NAVSTAR GPS. They seem to be under the impression that satellite clock corrections are required to compensate for relativistic effects.
Among other sources, see: http://www.navcen.uscg.gov/gps/geninfo/is-gps-200d.pdf
--[[User:TinOl3|TinOl3]] 18:42, 30 June 2010 (EDT)
==References==
==References==