At 11:23 PM 3/11/98 +0000, Ari Saarto wrote: >is there anywhere a list, a web page in the net, which would help a >Frustrated Finn to compare knots to metres/second or to >kilometres/hour? The defining link to the metric (SI) system of length measurements is this: 1 inch = 2.54 cm defined to be exact in fact, the (stupid) english (or american standard) system is now defined in terms of the metric (read: much more useful) system. To convert: from any english system to any metric system, or vice versa, use the relationships above (and a few math skills). To convert from the nautical system, which is based on the distance between lines on the earth (60 Nautical Miles = the distance between the latitude lines on the earth drawn 1 degree apart). There are 90 degrees of latitude between the earth's Equator and the True North Pole. Now, the radius of the earth is 6,370, 000 meters and 1/4 of the circumference (2 Pi times the diameter) is .25 x 2 x 3.141592654 x 6,370,000 =10,005,972.6 metres. Ok, now divide this by 90 and get 111177.4734. Now divide this by 60 to get 1853 meters (1.85 km) per Nautical mile. Oh, hell, I have been in the clkassroom way too long. *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.gasp-seakayak.net/paddlewise/ ***************************************************************************Received on Wed Mar 11 1998 - 14:22:50 PST
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