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We understand gravity in exquisite detail: the theory of General Relativity is our theory of gravity, and its numerous predictions have proven true again and ag
by tobinfricke 10y ago
We understand gravity in exquisite detail: the theory of General Relativity is our theory of gravity, and its numerous predictions have proven true again and again.
But you don't even need GR for "everyday life." For that, Newtonian gravity suffices, and the entire theory of Newtonian gravity could easily be grokked by a high school student.
- gus_massa 10y agoThe GPS system needs a small but important correction due to Special and General relativity. From: https://en.wikipedia.org/wiki/Global_Positioning_System https://en.wikipedia.org/wiki/Global_Positioning_System > Special and general relativity predict that the clocks on the GPS satellites would be seen by the Earth's observers to run 38 microseconds faster per day than the clocks on the Earth. The GPS calculated positions would quickly drift into error, accumulating to 10 kilometers per day. The relativistic time effect of the GPS clocks running faster than the clocks on earth was corrected for in the design of GPS. More details: http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps....