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In nuclear weapon design, the pit is the core of an implosion nuclear weapon, consisting of fissile material and any neutron reflector or tamper bonded to it. Some weapons tested during the 1950s used pits made with uranium-235 alone, or as a composite with plutonium. [1] All-plutonium pits are the smallest in diameter and have been the ...
W33 (nuclear warhead) The W33 (also known as the Mark 33, T317 and M422[1]) was an American nuclear artillery shell designed for use in the 8-inch (203 mm) M110 howitzer and M115 howitzer. A total of 2,000 W33 projectiles were produced, with the first production warheads entering the stockpile in 1957. The W33 remained in service until 1992.
Annotated photograph of a training-dummy version of the M388 nuclear round [14] Stowage of the Davy Crockett weapon system in an M113 carrier. Projectile, Atomic, Supercaliber 279mm XM388 for the Davy Crockett contained a W54 Mod 2 nuclear warhead. It was a very compact pure fission device weighing 50.9 pounds (23.1 kg) and when packaged in the ...
The liquid drop model is one of the first models of nuclear structure, proposed by Carl Friedrich von Weizsäcker in 1935. [5] It describes the nucleus as a semiclassical fluid made up of neutrons and protons, with an internal repulsive electrostatic force proportional to the number of protons. The quantum mechanical nature of these particles ...
Fat Man. " Fat Man " (also known as Mark III) was the codename for the type of nuclear weapon the United States detonated over the Japanese city of Nagasaki on 9 August 1945. It was the second of the only two nuclear weapons ever used in warfare, the first being Little Boy, and its detonation marked the third nuclear explosion in history.
That time the U.S. government accidentally dropped a nuclear bomb on South Carolina. Bristow Marchant. August 2, 2024 at 4:55 AM. Helen Gregg was 6 years old when her world blew up. She remembers ...
This was the only nuclear artillery shell ever actually fired in the U.S. nuclear weapons test program. The shell was 1,384 mm (4.5 ft) long and weighed 365 kg (805 lb). It was fired from a special, very large artillery piece, nicknamed "Atomic Annie", built by the Artillery Test Unit of Fort Sill, Oklahoma. About 3,200 soldiers and civilians ...
RDS-27, 250 kiloton bomb, a 'boosted' fission bomb tested 6 November 1955. RDS-37, 3 megaton bomb, the first Soviet two-stage hydrogen bomb, tested 22 November 1955. RDS-220 Tsar Bomba an extremely large three stage bomb, initially designed as a 100-megaton-bomb, but was scaled down to 50 megatons for testing.