Scaled rosette curves with 12-fold symmetry centered on antipodes of a sphere. "Scaled" refers specifically to ordinary scaling in the equatorial plane followed by "stereographic projection" from one antipode, and illustrates a velocity field that at each point is orthogonal to, but of the same magnitude as, the velocity field of rotation about the axis through the antipodes.
Made in the UK from recycled plastic bottles, stretched over a lightweight recycled frame. Packaging is also made from 100% recycled content.
