One of #NIH’s Building 2’s exhibits was “Radiological Safety After an A-Bomb Explosion,” where food was subjected to neutron bombardment and a Geiger counter was used to see how radioactive it became. So if your school desk really protected you from a nuclear blast, you knew what to eat. Photo is courtesy of the Harry S. Truman Library and Museum.
During World War II, Elizabeth Graves (left) first worked at the University of Chicago's Metallurgical Laboratory and, like some other physicists, left for Los Alamos. Elizabeth worked on the neutron reflector that surrounded the core of the atomic bomb. She stayed at Los Alamos until her retirement in 1972.