William Barletta, James Siegrist and Lee Schroeder, division directors of AFRD, Physics, and Nuclear Science, respectively, show off the General Sciences' "Great Unification" cake during an open house held on Thursday, July 9. This is the first time that all three divisions are housed at the same location on the fourth floor of Bldg. 50. Photo by Roy Kaltschmidt (XBD9807-01746.tif)