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The first atomic bomb test by the Soviet Union in August 1949 came earlier than Americans expected, and over the next several months, there was an intense debate within the U.S. government, military, and scientific communities over whether to proceed with the development of the far more powerful, nuclear fusion–based hydrogen bomb, then known ...
It tested its first atomic bomb at Lop Nur on October 16, 1964 (Project 596); and tested a nuclear missile on October 25, 1966; and tested a thermonuclear (hydrogen) bomb on June 14, 1967. China ultimately conducted a total of 45 nuclear tests ; although the country has never become a signatory to the Limited Test Ban Treaty , it conducted its ...
A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs , a more compact size, a lower mass, or a combination of these benefits.
1958 – The U.S. Air Force drafts Project A119, a classified plan to detonate a nuclear bomb on the Moon. The plan is quickly cancelled in favor of a Moon landing. 1958 – RAFAEL is formed by the Israeli Ministry of Defense to coordinate its nuclear program. [6] 1958 – The Campaign for Nuclear Disarmament is formed in the United Kingdom. [36]
A nuclear weapon [a] is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. The first test of a ...
' Tsar bomb '; code name: Ivan [5] or Vanya), also known by the alphanumerical designation "AN602", was a thermonuclear aerial bomb, and the most powerful nuclear weapon ever created and tested. [ 6 ] [ 7 ] The Soviet physicist Andrei Sakharov oversaw the project at Arzamas-16 , while the main work of design was by Sakharov, Viktor Adamsky ...
Ivy Mike was the codename given to the first full-scale test of a thermonuclear device, in which part of the explosive yield comes from nuclear fusion. [1] [2] [3] Ivy Mike was detonated on November 1, 1952, by the United States on the island of Elugelab in Enewetak Atoll, in the now independent island nation of the Marshall Islands, as part of Operation Ivy.
The Shrimp device design later evolved into the Mark 21 nuclear bomb, of which 275 units were produced, weighing 17,600 pounds (8,000 kg) and measuring 12.5 feet (3.8 m) long and 58 inches (1.5 m) in diameter. This 18-megaton bomb was produced until July 1956. [59]