Regarding:
 As part of your answer find a formula for the heading angle of the
 geodesic connecting 2 arbitrary fixed points (of known latitude
 and longitude) on the earth's surface as measured by an observer at
 one of those points
Bob Sciamanda
Physics, Edinboro Univ of PA (Em) http://www.velocity.net/~trebor/
trebor@velocity.net
 Original Message 
From: "David Bowman" <David_Bowman@GEORGETOWNCOLLEGE.EDU>
To: <PHYSL@LISTS.NAU.EDU>
Sent: Wednesday, August 18, 2004 11:23 PM
Subject: Re: spherical geometry
 Now that the previous spherical problems have been mostly put to rest
 let me propose another related problem.

 Painted on the concrete floor of each of the cells in the Gitmo
 detention complex is an arrow. Question: What direction does this
 arrow point?

 Hint: The Naval base at Guantanamo has latitude 20.1 deg N and
 longitude 75.1 deg W, and the Kab'bah in Mecca has latitude
 21.45 deg N and longitude 39.75 deg E. (The latitude difference
 between these 2 points is less than 1 1/2 degrees.)

 As part of your answer find a formula for the heading angle of the
 geodesic connecting 2 arbitrary fixed points (of known latitude
 and longitude) on the earth's surface as measured by an observer at
 one of those points.

 David Bowman