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  2. Castle Bravo - Wikipedia

    en.wikipedia.org/wiki/Castle_Bravo

    The Castle Bravo device was housed in a cylinder that weighed 23,500 pounds (10,700 kg) and measured 179.5 inches (456 cm) in length and 53.9 inches (137 cm) in diameter. [3] The primary device was a COBRA deuterium-tritium gas-boosted atomic bomb made by Los Alamos Scientific Laboratory, a very compact MK 7 device.

  3. Operation Castle - Wikipedia

    en.wikipedia.org/wiki/Operation_Castle

    Operation Castle was an unqualified success for the implementation of dry fuel devices. The Bravo design was quickly weaponized and is suspected to be the progenitor of the Mk-21 gravity bomb. The Mk-21 design project began on March 26, 1954 (just three weeks after Bravo), with production of 275 weapons beginning in late 1955.

  4. List of nuclear weapons - Wikipedia

    en.wikipedia.org/wiki/List_of_nuclear_weapons

    The components of a B83 nuclear bomb used by the United States. This is a list of nuclear weapons listed according to country of origin, and then by type within the states. . The United States, Russia, China and India are known to possess a nuclear triad, being capable to deliver nuclear weapons by land, sea and

  5. Nuclear testing at Bikini Atoll - Wikipedia

    en.wikipedia.org/wiki/Nuclear_testing_at_Bikini...

    The second series of tests in 1954 was codenamed Operation Castle. The first detonation was Castle Bravo, which tested a new design utilizing a dry-fuel thermonuclear bomb. It was detonated at dawn on March 1, 1954. Scientists miscalculated: the 15 Mt of TNT nuclear explosion far exceeded the expected yield of 4–8 Mt of TNT (6 predicted). [6]

  6. Mark 21 nuclear bomb - Wikipedia

    en.wikipedia.org/wiki/Mark_21_nuclear_bomb

    The Mark 21 nuclear bomb was a United States thermonuclear gravity bomb first produced in 1955. It was based on the TX 21 "Shrimp" prototype that had been detonated during the Castle Bravo test in March 1954.

  7. A Cold War-era bomb shelter in Florida has new owners. What's ...

    www.aol.com/cold-war-era-bomb-shelter-100924902.html

    It was a fortification built to withstand an atomic blast and ensure phones kept ringing even during and after an attack. ... one-bathroom Cold War-era bomb shelter is listed for sale at $499,000 ...

  8. Nuclear weapon yield - Wikipedia

    en.wikipedia.org/wiki/Nuclear_weapon_yield

    Comparative fireball radii for a selection of nuclear weapons. [citation needed] Contrary to the image, which may depict the initial fireball radius, the maximum average fireball radius of Castle Bravo, a 15-megatonne yield surface burst, is 3.3 to 3.7 km (2.1 to 2.3 mi), [6] [7] and not the 1.42 km displayed in the image.

  9. List of military nuclear accidents - Wikipedia

    en.wikipedia.org/wiki/List_of_military_nuclear...

    The bomb fell on the bomb-bay doors, smashing them open and going into a 15,000 feet (4,572 m) free fall. The high-explosive detonator went off after it hit the ground 6.5 miles east of Florence , South Carolina, in Mars Bluff , creating a 70 feet (21 m) wide crater, 30 feet (9 m) deep. [ 41 ]