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::::::Likewise, the engineers who correct the clocks of GPS satellites may not know or care that relativistic effects are behind the clock skew.  But that dodges the point that relativistic effects are real, observable, and must be corrected for in several useful inventions.--[[User:NgSmith|NgSmith]]
 
::::::Likewise, the engineers who correct the clocks of GPS satellites may not know or care that relativistic effects are behind the clock skew.  But that dodges the point that relativistic effects are real, observable, and must be corrected for in several useful inventions.--[[User:NgSmith|NgSmith]]
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:::::::Here's a good source: [http://tycho.usno.navy.mil/ptti/1996/Vol%2028_16.pdf | US Navy].  As for engineers not bothering to learn relativity, I think that's a mite off the mark.  I'm an engineer and I had to take a class dealing with the basics of SR, and I'm just an electrical engineer.  Aerospace engineers certainly deal with relativity a great deal, as do nuclear engineers. [[User:DanieleGiusto|DanieleGiusto]] 00:26, 7 April 2010 (EDT)
    
== GPS revisited ==
 
== GPS revisited ==

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