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    Re: The magical maths of Google Maps
    From: Bill B
    Date: 2015 Oct 7, 16:53 -0400

    On 10/7/2015 1:42 AM, Gary LaPook wrote:
    > So to test Google Earth it doesn't do to measure the distance from the
    > pole to the equator since you will get 5400 either way but you should
    > measure from the pole to 45 degree latitude.
    
    If you want to scratch your head try plotting longitude in Google earth.
    (Observed while plotting LOP's in the "Find Greg" at Neptune's Net
    exercise.) Test by drawing a mid-latitudes horizontal line 60 nautical
    miles long using Tools>Paths with units set to nautical miles, and save.
    Then set units to degrees and draw a 1-degree-long line directly under
    the first. Oddly enough the lines will be the same length. No cosine lat
    here.
    

       
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