开云体育

Re: GPS VS SEXTANT / ASTROLABE


 
Edited

I agree ??
Thank you for bringing the time up.?
?
It surprising what how far lust one minute off is at the equator.?
?
?Calculation 1??
Diameter at equator
(1/1) 24,500. ÷? ? ? ??
(1/2) 24. =? ? ? ??
One hour at equator is?
(1/3) 1,020.833 ÷?
(1/4) 60. =
One minute At the equator =
(1/5) 17.014. Miles,
?
One second at the equator = 1,497 feet. ?and 10 seconds is 1.7 miles
That is a long distance?
?
Dave?
?

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