Sun Study by Ruby Wallau September 27, 2019 Share Facebook LinkedIn Twitter Cassandra Valcort, Northeastern Interdisciplinary Arts student, uses a sundial to study the movement of the sun for an architecture assignment at Centennial Common. Photo by Ruby Wallau/Northeastern University Cassandra Valcort, Northeastern Interdisciplinary Arts student, uses a sundial to study the movement of the sun as it crosses Centennial Common. Photo by Ruby Wallau/Northeastern University