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  2. LANL helping build machine to research plutonium criticality ...

    www.aol.com/lanl-helping-build-machine-research...

    The machine will be housed 1,000 feet underground at the Nevada National Security Site, formerly known as the Nevada Test Site, and will have a 400-foot-long accelerator, made up of 102 cells ...

  3. W89 - Wikipedia

    en.wikipedia.org/wiki/W89

    W89 nuclear warhead W89 warhead (top). The W89 was an American thermonuclear warhead design intended for use on the AGM-131 SRAM II air to ground nuclear missile and the UUM-125 Sea Lance anti-submarine missile.

  4. 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.

  5. Wayback Machine - Wikipedia

    en.wikipedia.org/.../page/pdf/Wayback_Machine

    Wayback Machine The Wayback Machine is a digital archive of the World Wide Web founded by the Internet Archive, an American nonprofit organization based in San Francisco, California. Created in 1996 and launched to the public in 2001, it allows users to go "back in time" to see how websites looked in the past.

  6. Wayback Machine - Wikipedia

    en.wikipedia.org/wiki/Wayback_Machine

    The Wayback Machine is a digital archive of the World Wide Web founded by the Internet Archive, an American nonprofit organization based in San Francisco, California. Created in 1996 and launched to the public in 2001, it allows users to go "back in time" to see how websites looked in the past.

  7. Help:Archiving a source - Wikipedia

    en.wikipedia.org/wiki/Help:Archiving_a_source

    The Wayback Machine is a service which can be used to cite archived copies of web pages used by articles. This is useful if a web page has changed, moved, or disappeared; links to the original content can be retained.

  8. Cecil Kelley criticality accident - Wikipedia

    en.wikipedia.org/wiki/Cecil_Kelley_criticality...

    A criticality accident occurred on December 30, 1958, at Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico, in the United States It is one of 60 known criticality events that have occurred globally outside the controlled conditions of a nuclear reactor or test; though it was the third such event that took place in 1958 after events on June 16 [1] at the Y-12 Plant in Oak Ridge ...

  9. Atomic battery - Wikipedia

    en.wikipedia.org/wiki/Atomic_battery

    Plutonium-238 must be deliberately produced via neutron irradiation of Neptunium-237 but it can be easily converted into a stable plutonium oxide ceramic. Strontium-90 is easily extracted from spent nuclear fuel but must be converted into the perovskite form strontium titanate to reduce its chemical mobility, cutting power density in half ...