The stereographic projection
A light at the North Pole of a sphere laid on a plane on the South Pole: the meridians are projected on the plane in a sheaf of concentric circles with centre in the South Pole. You can see what happens with another family of parallels.
© matematita
immagine di Gian Marco Todesco
The image belongs to the sections...:
Lines and curves in 3d-space (3D geometry)
Sphere (3D geometry)
