Thomas Arend on Nostr: Now we perform the following calculations 6. Build a triangle between the North Pole ...
Now we perform the following calculations
6. Build a triangle between the North Pole and the two positions.
7. The distances (a and b) of the points to the North Pole should be equal on a flat earth and a globe.
8. The angle between the points also stays the same.
9. a = (90 - A.lat) / 180 * pi, b = (90 - B.lat) / 180 * pi
10. On a flat earth, the distance c would be R * sqrt( a² + b² - 2 * a * b * cos(γ) ) with R the radius of the globe.
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6. Build a triangle between the North Pole and the two positions.
7. The distances (a and b) of the points to the North Pole should be equal on a flat earth and a globe.
8. The angle between the points also stays the same.
9. a = (90 - A.lat) / 180 * pi, b = (90 - B.lat) / 180 * pi
10. On a flat earth, the distance c would be R * sqrt( a² + b² - 2 * a * b * cos(γ) ) with R the radius of the globe.
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