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  2. Plutonium - Wikipedia

    en.wikipedia.org/wiki/Plutonium

    Plutonium is a chemical element ... The three primary research and production sites of the project were the plutonium production facility ... a safe was discovered ...

  3. Radioactive contamination from the Rocky Flats Plant

    en.wikipedia.org/wiki/Radioactive_contamination...

    However, this was a "project that had originally been estimated by the DOE to take up to sixty-five years at a cost of $37 billion". [89] Residual contamination below levels of regulatory concern remain. Plutonium-239, with a 24,000 year half-life, will persist in the environment hundreds of thousands of years.

  4. Hanford Site - Wikipedia

    en.wikipedia.org/wiki/Hanford_Site

    During World War II, the S-1 Section of the federal Office of Scientific Research and Development (OSRD) sponsored a research project on plutonium. Research was conducted by scientists at the University of Chicago Metallurgical Laboratory. At the time, plutonium was a rare element that had only recently been synthesized in laboratories.

  5. Watchdogs want US to address extreme plutonium ... - AOL

    www.aol.com/news/watchdogs-want-us-address...

    Watchdogs are raising new concerns about legacy contamination in Los Alamos, the birthplace of the atomic bomb and home to a renewed effort to manufacture key components for nuclear weapons. A ...

  6. As part of the Manhattan Project, Hanford produced the plutonium to build Fat Man, the atomic weapon that was detonated above Nagasaki at the end of World War II, and for the United States ...

  7. US plutonium production plan likely to spur legal challenge - AOL

    www.aol.com/news/us-plutonium-production-plan...

    The National Nuclear Security Administration on Wednesday released a supplemental analysis related to the project, saying the determination was made after reviewing extensive documentation and ...

  8. Pit (nuclear weapon) - Wikipedia

    en.wikipedia.org/wiki/Pit_(nuclear_weapon)

    The pits of the first nuclear weapons were solid, with an urchin neutron initiator in their center. The Gadget and Fat Man used pits made of 6.2 kg of solid hot pressed plutonium-gallium alloy (at 400 °C and 200 MPa in steel dies – 750 °F and 29,000 psi) half-spheres of 9.2 cm (3.6 in) diameter, with a 2.5 cm (1 in) internal cavity for the initiator.

  9. When telling the history of plutonium, tell the full story ...

    www.aol.com/telling-history-plutonium-tell-full...

    Letters to the editor on the history of plutonium, Project 2025, ageism on the Benton ... Educating the community on safe sexual practices and condom use can also help to reduce the risk of ...