Physics, April 20, 2012 archives.northwestu.edu/handle/nu/84102 2026-04-27T14:25:14Z 2026-04-27T14:25:14Z Physics, April 20, 2012, photo 1 archives.northwestu.edu/handle/nu/84103 2026-02-17T20:54:13Z 2012-04-20T00:00:00Z Physics, April 20, 2012, photo 1 Students work in physics class. 2012-04-20T00:00:00Z Physics, April 20, 2012, photo 2 archives.northwestu.edu/handle/nu/84104 2026-02-17T20:54:12Z 2012-04-20T00:00:00Z Physics, April 20, 2012, photo 2 Students work in physics class. 2012-04-20T00:00:00Z Physics, April 20, 2012, photo 3 archives.northwestu.edu/handle/nu/84105 2026-02-17T20:54:11Z 2012-04-20T00:00:00Z Physics, April 20, 2012, photo 3 Students work in physics class. 2012-04-20T00:00:00Z