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To: BenLurkin

Put a point on a sphere and make 3 lines from it 120 degrees apart. extend 2 of the lines from that point form part of a great circle. now there will be 2 other points you can put on those lines that will have similar great arcs that intersect at the 4th point.


41 posted on 10/01/2014 2:19:08 PM PDT by Rodamala
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To: Rodamala; BenLurkin; RegulatorCountry

Oops, and thanks Rodamala.


48 posted on 10/04/2014 10:50:58 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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