A special traveling exhibit of the U.S. Atomic Energy Commission, "Your Stake in the Atom", is housed in its own geodesic exoskeleton structure some 20 feet high and 50 feet in diameter in Oak Ridge, Tennessee, in 1966. The exhibit featured live demos on uses of nuclear power and a set of remote controlled mechanical hands. #

Early Construction of the K-25 uranium enrichment facility (background), with one of original houses of Oak Ridge, Tennessee in the foreground, in 1942. That year, the United States Army Corps of Engineers began quickly acquiring land in the Oak Ridge area, at the request of the U.S. government, to build production facilities for the Manhattan Project. The K-25 plant, when completed, was the largest building in the world for a time. #

Calutron operators at their panels, in the Y-12 plant at Oak Ridge, Tennessee, during World War II. The calutrons were used to refine uranium ore into fissile material. During the Manhattan Project effort to construct an atomic explosive, workers toiled in secrecy, with no idea to what end their labors were directed. Gladys Owens, the woman seated in the foreground, did not realize what she had been doing until seeing this photo in a public tour of the facility fifty years later. #

A caultron "racetrack" uranium refinery at the Y-12 plant in Oak Ridge, Tennessee, during the Manhattan Project. The light-colored bars along the top are solid silver. #

Physicist J. Robert Oppenheimer at Oak Ridge, on February 14, 1946. Oppenheimer was called the "father of the atomic bomb" for his role as the head of the secret weapons laboratory of the Manhattan Project. #

Temporary Housing (Hutments) fill the formerly empty valleys of Oak Ridge in 1945. The sudden growth of the military's facilities caused the local population to grow from about 3,000 in 1942 to about 75,000 in 1945. #

Shift change at the Y-12 uranium enrichment facility in Oak Ridge. Notice the billboard: "Make CEW count Continue to protect project information." CEW stands for Clinton Engineer Works, the Army name for the production facility. #

Welding at the K-25 facility in Oak Ridge, in February of 1945. At the height of production, nearly 100,000 workers were employed by the government in the secret city. #

V-J day celebration in Jackson Square in downtown Oak Ridge in August of 1945. When the first atomic bomb was dropped on Japan on August 6, 1945, the news reports revealed to the people at Oak Ridge what they had been working on all along. #

Oak Ridge's X-10 graphite reactor, in 1947. X-10 was the world's second artificial nuclear reactor (after Enrico Fermi's Chicago Pile) and was the first reactor designed and built for continuous operation. #

An employee at the Oak Ridge electromagnetic process plant, where stable isotopes are concentrated, holds a vial containing the stable isotope Molybdenum 92, on January 22, 1948. Stable isotopes can be handled without risk to the person. In contrast to radioactive isotopes, they do not emit radiation and can therefore be safely handled. #

A therapy unit installed at the Oak Ridge hospital in 1955 used a source of radioactive cesium-137 to kill diseased tissue, allowing maximum dose of radiation to a cancerous area and minimizing effects to healthy tissue elsewhere. The hospital, was one of the nation's early centers for nuclear medicine. #

Two of 40,000 mice being used in atomic tests at Oak Ridge, by scientists seeking to learn the possible effects of radiation on the heredity of man, displayed by the Atomic Energy Commission on February 18, 1950. The mouse on the right is described by the AEC as a "hereditary mutation" - a descendant of mice which have been given periodic doses of X-rays. A normal litter mate in on the left. #

An "Atoms For Peace" traveling exhibit in Oak Ridge, in 1957. President Dwight D. Eisenhower launched an "Atoms for Peace" program that supplied equipment and information to schools, hospitals, and research institutions within the U.S. and throughout the world. The first nuclear reactors in Iran and Pakistan were built under this program. #

Oak Ridge, Tennessee, on April 21, 1959. When it was first founded in 1942 to supply housing for workers at the Atomic Energy Commission plant, Oak Ridge was a military reservation. Since the end of World War II, however, the AEC has removed the fence that once surrounded Oak Ridge and gradually given more voice in matters of community policy to the town council, an elected body with advisory powers only. On May 5, Oak Ridge's transformation from military control to self-government was completed, as its citizens voted to incorporate. #

Photographer Ed Westcott took almost all of the photos above. He was the first AEC government photographer in Oak Ridge, and the only authorized photographer during the Manhattan Project. Here, Ed poses with his motion picture cameras and lights in Building 2714 in in Oak Ridge, in 1960. Born in 1922, Westcott still resides in Oak Ridge, and recently celebrated his 90th birthday. #