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#1
August 28th 08, 12:18 AM
posted to rec.aviation.piloting
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Navigation problem
Here's a cute trivial problem I usually use to kill time with curious students.
There are places on the Earth where you can fly; 1 mile south, then 1 mile east (or west), and then 1 mile north, and end up in the same place. One of these places is the north pole. Where are the others? -- Regards, BobF. 
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#2
August 28th 08, 12:22 AM
posted to rec.aviation.piloting
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Navigation problem
Anthony's computer chair.
"Bob F." wrote in message . .. Here's a cute trivial problem I usually use to kill time with curious students. There are places on the Earth where you can fly; 1 mile south, then 1 mile east (or west), and then 1 mile north, and end up in the same place. One of these places is the north pole. Where are the others? -- Regards, BobF.
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#3
August 28th 08, 12:49 AM
posted to rec.aviation.piloting
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Navigation problem
On Aug 27, 7:18*pm, "Bob F." wrote:
Here's a cute trivial problem I usually use to kill time with curious students. There are places on the Earth where you can fly; 1 mile south, then 1 mile east (or west), and then 1 mile north, and end up in the same place. *One of these places is the north pole. *Where are the others? - Regards, *BobF. the correct distance from the south pole that is one mile north of the place where 1 mile is one, two, three, or more circles of the pole, of course. There are an infinity of them, but I think the most distant one from the pole is the order of 1 plus1/6.28 miles from the south pole.
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#4
August 28th 08, 12:53 AM
posted to rec.aviation.piloting
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Navigation problem
"a" wrote in message
... On Aug 27, 7:18 pm, "Bob F." wrote: Here's a cute trivial problem I usually use to kill time with curious students. There are places on the Earth where you can fly; 1 mile south, then 1 mile east (or west), and then 1 mile north, and end up in the same place. One of these places is the north pole. Where are the others? - Regards, BobF. the correct distance from the south pole that is one mile north of the place where 1 mile is one, two, three, or more circles of the pole, of course. There are an infinity of them, but I think the most distant one from the pole is the order of 1 plus1/6.28 miles from the south pole. Right on...you guys are too good! -- Regards, BobF.
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