Letters to the Future An Essay from Field Notes on Science and Nature by John D. Perrine & James L. Patton The lapse of many yearsThe Grinnell SystemJim's systemJohn's systemRecord them all+3 More
Rafael Araujo's Golden Ratio A Gallery www.rafael-araujo.com Show image 0 Show image 1 Blue Morpho Double Helix & Icosahedron mathgeometryart