archives.northwestu.edu/handle/nu/84102 Mon, 27 Apr 2026 14:15:12 GMT 2026-04-27T14:15:12Z archives.northwestu.edu/handle/nu/84103 Physics, April 20, 2012, photo 1 Students work in physics class. Fri, 20 Apr 2012 00:00:00 GMT archives.northwestu.edu/handle/nu/84103 2012-04-20T00:00:00Z archives.northwestu.edu/handle/nu/84104 Physics, April 20, 2012, photo 2 Students work in physics class. Fri, 20 Apr 2012 00:00:00 GMT archives.northwestu.edu/handle/nu/84104 2012-04-20T00:00:00Z archives.northwestu.edu/handle/nu/84105 Physics, April 20, 2012, photo 3 Students work in physics class. Fri, 20 Apr 2012 00:00:00 GMT archives.northwestu.edu/handle/nu/84105 2012-04-20T00:00:00Z