Category Archives: ManhattanProject

Atomic Snapshots: B&T Metals

B&T Metals, at the corner of Front and Long streets (now Town and Lucas streets) in Columbus, Ohio, manufactured aluminum pieces used to hold linoleum and carpeting to the floor. When Lyman Kilgore bought the company in 1932, it became one of the first African-American owned factories in the United States, employing more than 500 workers on three shifts at its peak.

B&T Metals building circa 1970s.
B&T Metals circa 1970s (southwest corner of Front & Long)
B&T Metals current
Panorama of B&T Metals former location on corner of Lucas & Town – now an empty lot.

For eight months during 1943, B&T Metals was contracted by DuPont to extrude rods of uranium metal pellets for the B Reactor in Hanford, Washington, for the Manhattan Project. In the northwest corner of the main building on the second floor, workers stretched uranium into long rods, cutting them into 24-inch lengths. The slugs were ground on lathes until they were 7-8 inches in diameter.

There were no additional safety precautions, nor gloves or masks. Workers were required to have weekly government-organized physicals. Once each month, the workers had an extensive medical screening. Those working on the project were watched by armed guards, and security was tighter when the rods were removed for transport.

In the 1990s, remediation and decontamination of the area cleaned up most of the area. In 2004, a part of the second floor of the main building where uranium was handled collapsed, so the building was demolished. A developer has been working to turn the old factory and surrounding area in Franklinton into a “funky” arts district.

Atomic Snapshots: Atomic Bomb Loading Pits

Out on a far section of Wendover Airfield, you’ll find what remains of the loading pits for the Silverplate B-29 Superfortress bombers. The size of the atomic bombs were such that they couldn’t be loaded in a traditional manner into the bombers because of their height. As such, the training bombs at Wendover (called pumpkin bombs which were the same dimensions and weight) were lowered into the pits. The bombers were then maneuvered over the pit, and the bomb was raised on a hydraulic jack into the bomber.

The full access tour at Historic Wendover Airbase (usually offered twice each year) takes visitors out to the bomb pits to see what remains. These same pits were replicated on Tinian for deployment during World War II and the culmination of the Manhattan Project.

Below is a video (no sound, courtesy the Atomic Heritage Foundation) showing the atomic bomb loading pits on Tinian along with the loading of Little Boy into Enola Gay and Fat Man into Bockscar.

Loading Little Boy and Fat Man into the Silverplate B-29s from the loading pits on Tinian. Courtesy of the Atomic Heritage Foundation.

Atomic Snapshots: Eads Hall

In Eads Hall at Washington University in St. Louis, you’ll find a grouping of plaques and information in the first floor hallway. The building housed the Department of Physics where Arthur Compton demonstrated the particle concept of electromagnetic radiation, proving Einstein’s proposal that light was both a wave and particle. The Compton Effect garnered him the Nobel Prize in Physics in 1927.

Arthur Compton went on to direct the Metallurgical Laboratory (Met Lab) at the University of Chicago, a vital link in the Manhattan Project, which supported the development, construction, and operation of the reactors at Hanford and enrichment activities at Oak Ridge.

The grouping consists of an informational plaque, an historic marker, a photograph, the sketched experiment of the scattering of X-rays, and a description of his Nobel Prize winning experiment.