Sundials measure the passage of time by keeping track of the movement of the shadow of a stick (called the gnomon). These analog timepieces have been around for millennia, the earliest known being sundials in Ancient Egypt dating back to about 1500 BC. In this talk we will introduce a digital sundial, whose shadows spell out the time in numerals. After demonstrating the device, we will explore the theory of digital sundials in the context of projection mappings. We encounter cool art, fractals and geometric series along the way.
Join us on Monday, Oct. 28, at 3:10 p.m. in Hayes 109 to hear this exciting presentation from Associate Professor of Mathematics Marie Snipes. We hope to see you there!