IMB (Irvine, Michigan, Brookline), a collaboration between the University of Michigan, the University of California at Irvine, and the U.S. Department of Energy, was an experiment designed to determine the ultimate stability of matter. Construction image. Finished cavity -- looking through tunnel to main part of mine.
Framework up for second floor and subflooring in for third floor. Additional girders. No. 11 of chronological series of construction photographs, numbered 1 to 32. Smith, Hinchman & Grylls, architects. W.B. Wood Co., construction