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Old 2nd Sep 2000, 02:21
  #12 (permalink)  
Ceppo
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In that equation, what does A (before ACOS that is) represent?

Also I take it lat and long are in degrees yes? and one more thing? what is the 59.99985??

I was asking this because some of my friends for interviews have been asked to roughly estimate the distance from london to new york.....assuming (big assumptions)

london and NY are on the same angle of lat,

The earth is perfectly spherical.

The only way i can think is to say....LON-NY 75 deg. 1 deg = 60 mins 1 min = 1 nm so 60 * 75 which is roughly 4 and a half thousand miles (but that seems way too much)

any thoughts?