NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Units and area.
From: Gary LaPook
Date: 2006 Jul 18, 12:28 -0500
Gary LaPook added:
That was an interesting book.
If you ever need to figure the conversion factor of meters to a nautical mile you can go back to the basics. There are 10,000,000 (ten million) meters between the equator and the north pole and 5400 (90 X 60) nautical miles in the same distance. Ten million divided by 5400 equals 1852 meters per nautical mile.
Chuck Taylor wrote:
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From: Gary LaPook
Date: 2006 Jul 18, 12:28 -0500
Gary LaPook added:
That was an interesting book.
If you ever need to figure the conversion factor of meters to a nautical mile you can go back to the basics. There are 10,000,000 (ten million) meters between the equator and the north pole and 5400 (90 X 60) nautical miles in the same distance. Ten million divided by 5400 equals 1852 meters per nautical mile.
Chuck Taylor wrote:
--- Dan Allen wrote:The nautical mile is based on the distance from the equator to the pole. With today's measurements it turns out to be off by a very small amount...It's an interesting coincidence that the length of the meter is also based on the distance from the equator to the pole. It was originally intended to be one ten-millionth of the distance from the North Pole to the Equator. It, too, is off by a very small amount from what it was originally intended to be. There is an interesting account of the French expedition (beginning in 1792) that set out to accurately measure that distance: "The Measure of All Things, the Seven-Year Odyssey and Hidden Error That Transformed the World", by Ken Adler, 2002, ISBN 0-7432-1676-8. Chuck Taylor 48d N 122d W __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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