Address:
Room 707
Research Center for Pure and Applied Mathematics,
Graduate School of Information Sciences,
Tohoku University,
6-3-09 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579,
Japan

Email:
jesse (dot) lansdown (dot) a1 (at) tohoku (dot) ac (dot) jp

Below is an interactive illustration of Desargues’ Theorem. Try dragging the blue dots around!