Quote Originally Posted by CVT
Inspite of my technical background, how they track the actual rotation and revolution of the earth around the sun is still beyond me... These guys are 'out of this world'... It would be an enriching and pleasurable experience to have a chat with these experts...
thru hundreds of satelites out there...if they can pinpoint at an accuracy of 1 meter with GPS around the world, 86,400 seconds/per day is very easy to measure compared to pinpointing the exact location.