> Circumference of the earth about 24,901 statue miles > or 21638.3774 nautical miles > divide by 360 = 60.1066038 nautical miles > by 60 = 1.00177673 nautical miles > by 60 = 101.448513 feet > > Within the accuracy of the instruments it was > 1 deg = 60 nm, 1 min = 1 nm and 1 sec = 100 feet Also. 360 degrees = 24 hours 15 degrees = 1 hour 1 degree = 4 minutes <- I can see some fun starting here :-) 1 minute = 4 seconds 1 second = 1/15 second Confused yet :-) ? RM _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist