Sunday November 21, 2021
– Live Presentation with Annalisa Crannell –
Session at Noon ET* (Atlanta Time).
(*) 17:00 UTC/GMT
Please join us starting 10 minutes before each session using the following button.
There will be a Gather session at the conclusion of the talk, for socializing. To be added to the attendance list to be able to join please contact us via firstname.lastname@example.org
Drawing Three Impossible Figures Before BreakfastHow do we fit a three-dimensional world onto a two-dimensional canvas? Answering this question will change the way you look at the world, literally. In this talk, we’ll explore optical illusions and other surprising effects made possible with perspective geometry: the Ames Room, forced perspective, anamorphic art, Trompe L’oeil, the Hitchcock zoom, reverse perspective, and six-point perspective on spheres.
Annalisa Crannell is an Associate Dean and Professor of Mathematics at Franklin & Marshall College in Lancaster, Pennsylvania, and recipient of both her college’s and the MAA’s distinguished teaching awards. Her early research was in topological dynamical systems (also known as “Chaos Theory”), but she has become active in working with mathematicians and artists on Projective Geometry applied to Perspective Art. Together with mathematician/artists Marc Frantz and Fumiko Futamura, she is the author of Perspective and Projective Geometry and Viewpoints: Mathematical Perspective and Fractal Geometry in Art. She especially enjoys talking to non-mathematicians who haven’t (yet) learned where the most beautiful aspects of the subject lie.