Quote:
Originally Posted by Pisces
There are black/white bands on the edge of the map that are certain intervals of degrees. Or you can measure distances away from the equator and Greenwich meridian, 1 degree is 120km.
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Actually you don't normally use meridians of longitude for distance measurement because the distance between them is continually narrowing to where they all meet at the poles. A minute (1/60th degree) of latitude is equal to a sea mile and changes slightly between the equator and the poles because the earth is an oblate spheroid. The International Nautical Mile is the accepted average value of a sea mile and defined as 1852m. Therefore, a degree would be close to 1.852 X 60 = 111 km.
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