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Ask AI3: What is thermonuclear?
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Can thermonuclear war be set off by accident??
However, the system is designed, ingeniously and hopefully, so that no one man could initiate a thermonuclear war.
* 1953 – Nuclear weapons testing: the Soviet atomic bomb project continues with the detonation of Joe 4, the first Soviet thermonuclear weapon.
He gained renown as the designer of the Soviet Union's Third Idea, a codename for Soviet development of thermonuclear weapons.
" While Sakharov strongly disagreed with Teller over nuclear testing in the atmosphere and Strategic Defense Initiative, he believed that American academics had been unfair to Teller ’ s resolve to get the H-bomb for the United States since " all steps by the Americans of a temporary or permanent rejection of developing thermonuclear weapons would have been seen either as a clever feint, or as the manifestation of stupidity.
Sakharov, in association with Igor Tamm, proposed confining extremely hot ionized plasma by torus shaped magnetic fields for controlling thermonuclear fusion that led to the development of the tokamak device.
The answer was for a rocket-powered, supersonic missile capable of carrying a large nuclear ( or projected thermonuclear ) warhead with a range of at least.
Its design period was protracted, with various development problems exacerbated by the fact that designers lacked information on the actual size and weight of the proposed boosted-fission warhead Green Bamboo, or its likely thermonuclear successor derived from the Granite series.
As it turned out, neither of the originally-proposed UK-designed warheads were actually fitted, being superseded by Red Snow, an Anglicised variant of the U. S. W-28 thermonuclear warhead of 1. 1 Mt yield.
* Warhead: Red Snow thermonuclear ( 1. 1 Mt )
This results in an increasing rate of fusion reactions, eventually igniting a thermonuclear flame ( carbon detonation ) which causes the supernova .< sup >, § 5. 1. 2 </ sup >
The R-12 was the first operational intermediate-range ballistic missile, the first missile ever mass-produced, and the first Soviet missile deployed with a thermonuclear warhead.
But Fermi also participated in preliminary work on the hydrogen bomb at Los Alamos as a consultant, and along with Stanislaw Ulam, calculated that the amount of tritium needed for Edward Teller's model of a thermonuclear weapon would be prohibitive, and a fusion reaction could not be assured to propagate even with this large quantity of tritium.
Twelve thermonuclear warheads were exploded in all, one of which was deliberately disrupted when the PGM-17 Thor carrying it failed to launch scattering plutonium debris over the island.
Later, he also filed a patent with John von Neumann, describing a method to initiate fusion in a thermonuclear weapon with an implosion trigger.
Most scholars have agreed with the assessment made by Hans Bethe in 1952, which concluded that by the time Fuchs left the thermonuclear program — the summer of 1946 — there was too little known about the mechanism of the hydrogen bomb for his information to be of any necessary use to the Soviet Union ( the successful Teller-Ulam design was not discovered until 1951 ).
The transmutation of lithium atoms to helium in 1932 was the first fully man-made nuclear reaction, and lithium deuteride serves as a fusion fuel in staged thermonuclear weapons.
In 1956 the United Kingdom selected Malden as the " instrumentation site " for its first series of thermonuclear ( H-bomb ) weapons tests, based at Kiritimati ( Christmas Island ).
Nevertheless, the bombing target marker was located at the south point of the island and three thermonuclear devices were detonated at high altitude a short distance offshore in 1957.
* 1998 – India conducts three underground atomic tests in Pokhran to include a thermonuclear device.
In July 1962, the United States tested a thermonuclear weapon high over the South Pacific at around 400 km in the upper atmosphere, in this region, creating an artificial belt of high-energy electrons, and some of them were still around 4 – 5 years later ( such tests are now banned by treaty ).
The uncontrolled fusion of hydrogen into helium is known as thermonuclear runaway.
Research into developing controlled thermonuclear fusion for civil purposes also began in earnest in the 1950s, and it continues to this day.
In 1958 the British government traded their VX technology with the United States of America in exchange for information on thermonuclear weapons ; by 1961 the US was producing large amounts of VX and performed its own nerve agent research.
A similar process occurs in fissionable isotopes ( such as uranium-238 ), but in order to fission, these isotopes require additional energy provided by fast neutrons ( such as produced by nuclear fusion in thermonuclear weapons ).

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