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  2. High-altitude nuclear explosion - Wikipedia

    en.wikipedia.org/.../High-altitude_nuclear_explosion

    The visual effects of a high-altitude or space-based explosion may last longer than atmospheric tests, sometimes in excess of 30 minutes. Heat from the Bluegill Triple Prime shot, at an altitude of 50 kilometers (31 miles), was felt by personnel on the ground at Johnston Atoll , and this test caused retina burns to two personnel at ground zero ...

  3. Overpressure - Wikipedia

    en.wikipedia.org/wiki/Overpressure

    Overpressure in an enclosed space is determined using "Weibull's formula": [5] [6] = where: 22.5 is a constant based on experimentation = (kilograms) net explosive mass calculated using all explosive materials and their relative effectiveness

  4. Starfish Prime - Wikipedia

    en.wikipedia.org/wiki/Starfish_Prime

    It was launched from Johnston Atoll on July 9, 1962, and was the largest nuclear test conducted in outer space, and one of five conducted by the US in space. A Thor rocket carrying a W49 thermonuclear warhead (designed at Los Alamos Scientific Laboratory ) and a Mk. 2 reentry vehicle was launched from Johnston Atoll in the Pacific Ocean, about ...

  5. List of artificial radiation belts - Wikipedia

    en.wikipedia.org/wiki/List_of_artificial...

    Explosion Location Date Yield (approximate) Altitude (km) Nation of Origin Hardtack Teak: Johnston Island 1958-08-01 3.8 megatons: 76.8 United States: Hardtack Orange: Johnston Island 1958-08-12 3.8 megatons: 43 United States: Argus I: South Atlantic: 1958-08-27 1-2 kilotons: 200 United States: Argus II: South Atlantic: 1958-08-30 1-2 kilotons: 256

  6. If a nuclear weapon is about to explode, here's what a safety ...

    www.aol.com/article/news/2018/02/01/if-a-nuclear...

    The single-most important thing to remember if a nuclear bomb is supposed to explode, he says, is to shelter in place. "There were survivors in Hiroshima within 300 meters of the epicenter ...

  7. Ballistic missile - Wikipedia

    en.wikipedia.org/wiki/Ballistic_missile

    By the end of World War II in Europe in May 1945, more than 3,000 V-2s had been launched. [2] In addition to its use as a weapon, a vertically launched V-2 became the first human-made object to reach outer space on June 20, 1944. [3] The R-7 Semyorka was the first intercontinental ballistic missile. [4]

  8. Table of explosive detonation velocities - Wikipedia

    en.wikipedia.org/wiki/Table_of_explosive...

    This is a compilation of published detonation velocities for various high explosive compounds. Detonation velocity is the speed with which the detonation shock wave travels through the explosive.

  9. Russia releases secret footage of 1961 'Tsar Bomba' hydrogen ...

    www.aol.com/news/2020-08-28-russia-releases...

    Developed between 1956 and 1961 as the Soviet Union engaged in a nuclear arms race with the United States, the Tsar Bomba - the King of Bombs - was the largest hydrogen bomb ever and was claimed ...