Masterclass #21 Toby Grotz – a’Mirror Image Symmetry in Coil Winding” Gail2021-10-27T09:14:31-04:00 Toby Grotz presents “Mirror Image Symmetry in Coil Winding and the Implications in Biological and Electrical Systems.” [Click photo for more] […] Masterclass #21 Toby Grotz – a’Mirror Image Symmetry in Coil Winding”Gail2021-10-27T09:14:31-04:00