Critical Assembly was displayed at the Corcoran Gallery of Art in 2003 during an exhibit entitled "Atomic Time: Pure Science and Seduction." The main part of the sculpture is a three-dimensional representation of components of an
atomic bomb. The artwork included a disassembled sphere that had been designed to hold the nuclear payload of
plutonium and
uranium. Sanborn purchased the blank sphere from prior lab employees who had bought them as surplus after the experiments of the project ceased. The sculpture was surrounded by black cables which draped underneath eight tables holding different devices used in the
research and implementation of the first atomic bomb. The actual cabinet-sized detection equipment used at
Los Alamos were also on display. The sounds from
Geiger counters could be heard within the room, indicating low levels of radiation coming from four radium wrist watches. On the wall was a blue
radium clock dial that was frozen at 5:30 a.m., July 16, 1945, the time of the
Trinity blast in
Alamogordo, New Mexico. ==History==