Geoscience Reference
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Figure 9.11 Bonne projection, (a) oceans and tectonic plate edges only, and (b) oceans,
tectonic plate edges, and landmasses. Source of base map: Esri software.
The answer lies in the fact that the geometry of mapping is assumed to be
Euclidean.
The goal of mapping the surface of the Earth-sphere (globe) to the plane is to
do so in a manner that is one-to-one: No point on the globe corresponds to
more than one point in the plane, and vice versa. Stereographic projection of
the spherical surface (from the North Pole) to a tangent plane (tangent at the
 
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