Inverse Stereographic Projection of the Logarithmic Spiral

http://demonstrations.wolfram.com/InverseStereographicProjectionOfTheLogarithmicSpiral The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. This Demonstration shows the inverse stereographic projection of a logarithmic spiral onto the unit sphere. You can move the spiral in the z=-1 plane; it maps on the sphere as a loxodrome. Contributed by: Erik Mahieu