pencotts·8 ปีที่แล้ว·discussBBC interview with John Volanthen is here https://www.youtube.com/watch?v=8p8XFvRJD7Q
pencotts·9 ปีที่แล้ว·discussLet us not forget Samuel Franklin Cowdery: http://www.atlasobscura.com/articles/man-lifting-kites-cody (not tetrahedral, but impressive)