FlyerTalk Forums - View Single Post - US Atomic Clock question
View Single Post
Old Aug 13, 2007 | 7:20 pm
  #31  
cpx
 
Join Date: Feb 2006
Location: 99654
Programs: Many
Posts: 6,450
Originally Posted by HkCaGu
Of course light slows down when it hits the atmosphere.
Hence the word "approximately"

also the reflected signals (often disregarded by the GPS receivers)
can skew the time and distance traveled.
cpx is offline