Re:A clock that can detect tiny shifts in the flow of time i...
by nullc on Monday November 03, 2014 @11:20PM
(#8555125)
And have since the 70s( http://support.radioshack.com/support_tutorials/gps/gps_tmli... ). Pretty wild.
You already mention GPS later in your comment, so it isn't that necessary, but I want to emphasize anyway: we are not only "dealing with", we are "making use of" it. Things we use every day would be impossible, if we wouldn't have precise enough clock to measure all that stuff already.