Date: 8 February 2019
Location: Hempfield High School, Room 213
 Speaker: Vince Coll, Lehigh University
   Title: Why curves curve:  finding the geodesics on a donut

   Abstract: Based on an intuitively appealing way of
   defining what is meant by a geodesic on a two-dimensional
   surface in three-dimensional Euclidean space, we describe the
   general behavior of the geodesics on a surfaces of revolution and
   give a simple yet precise characterization of the geodesics on a
   torus.  We use only simple tools from the standard introductory
   courses in single and multivariable calculus, and no specialized
   language or notation from differential geometry, so  our
   presentation is self contained for anyone who is familiar with the
   contents of these courses.