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"5 Epic Nuclear Test FAILS Caught on Film" について
From fizzles to exploding missiles to out of control nuclear reactions: presenting classified footage from 5 failed nuclear weapons tests... Subscribe to Dark5 ► http://bit.ly/dark5 A fizzle occurs when the detonation of a device for creating a nuclear explosion (such as a nuclear weapon) grossly fails to meet its expected yield. If two pieces of subcritical material are not brought together fast enough, nuclear predetonation (fizzle) can occur, whereby a very small explosion will blow the bulk of the material apart. The cause(s) for the failure can be linked to improper design, poor construction, or lack of expertise. All countries that have had a nuclear weapons testing program have experienced some fizzles. A fizzle can spread radioactive material throughout the surrounding area, involve a partial fission reaction of the fissile material, or both.For practical purposes, a fizzle can still have considerable explosive yield when compared to conventional weapons. In multistage fission-fusion weapons, full yield of the fission primary that fails to initiate fusion ignition in the fusion secondary is also considered a "fizzle", as the weapon failed to reach its design yield despite the fission primary working correctly. Such fizzles can have very high yields, as in the case of Castle Koon, where a device with a 1 megaton design yield underwent a fusion fizzle, but its primary still generated a yield of 110 kilotons.
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