21 Nitrogen Image: LOC's Public Domain Archive Public Domain Search}

Production. New Tennessee Valley Authority synthetic ammonia plant. An operator in the hydrogen section of the TVA's new synthetic plant in the Muscle Shoals area. Ammonia is made here by the high-pressure synthesis of nitrogen and hydrogen. The ammonia thus secured is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Production. New Tennessee Valley Authority synthetic ammonia plant. Making a weld on a filter head in the ammonia synthesis system at the TVA's new synthetic ammonia plant in the Muscle Shoals area. Ammonia is made here by the high- pressure synthesis of nitrogen and hydrogen. The ammonia thus secured is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Knoxville, Tennessee (Tennessee Valley Authority (TVA)). Nitrogen determination apparatus in TVA research at University of Tennessee

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Production. New Tennessee Valley Authority synthetic ammonia plant. A water saturating tower in the hydrogen section of the TVA's new synthetic ammonia plant in the Muscle Shoals area. Ammonia is made here by the high-pressure synthesis of nitrogen and hydrogen, and is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Production. New Tennessee Valley Authority synthetic ammonia plant. Applying lagging on low-pressure heat interchanger piping in the TVA's new synthetic ammonia plant in the Muscle Shoals area. Ammonia is made here by the high- pressure synthesis of nitrogen and hydrogen. The ammonia thus secured is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Knoxville, Tennessee (Tennessee Valley Authority (TVA)). Nitrogen determination apparatus in TVA research at University of Tennessee

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Production. New Tennessee Valley Authority synthetic ammonia plant. Making a pipe joint on a liquid vaporizer in the TVA's new synthetic ammonia plant in the Muscle Shoals area. Ammonia is made here by the high-pressure synthesis of nitrogen and hydrogen. The ammonia thus secured is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Production. New Tennessee Valley Authority synthetic ammonia plant. Part of the gas purification section of the TVA's new synthetic ammonia plant in the Muscle Shoals area. Ammonia is made here by the high-pressure synthesis of nitrogen and hydrogen. The ammonia thus secured is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Production. New Tennessee Valley Authority synthetic ammonia plant. Fitting a valve to serve one of the gas compressors in the TVA's new synthetic ammonia plant in the Muscle Shoals area. Ammonia is made here by the high-pressure synthesis of nitrogen and hydrogen. The ammonia thus secured is converted at Muscle Shoals to ammonium nitrate for use in the making of high explosive shells. In addition to the production of munitions, the TVA is engaged in research in many fields, seeking new sources of strategic materials and better ways to utilize them in the war effort

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description