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The demon core (like the core used in the bombing of Nagasaki) was, when assembled, a solid 6.2-kilogram (14 lb) sphere measuring 8.9 centimeters (3.5 in) in diameter.. It consisted of three parts made of plutonium-gallium: two hemispheres and an anti-jet ring, designed to keep neutron flux from "jetting" out of the joined surface between the hemispheres during implosi
Bibliography of military nuclear accidents from the Alsos Digital Library for Nuclear Issues Archived 2011-06-06 at the Wayback Machine; Official List of accidents involving nuclear weapons from the UK Ministry of Defence; Schema-root.org: Nuclear Power Accidents 2 topics, both with a current news feed
The Cold War ended in 1991, but the looming threat of nuclear attack lives on with more than 14,900 nuclear weapons wielded by nine nations.. A terrorist-caused nuclear detonation is one of 15 ...
The episode triggered criticism in Japan. Toshiko Yamasaki, Yamaguchi's daughter, appeared on NHK's national evening news and said: "I cannot forgive the atomic bomb experience being laughed at in Britain, which has nuclear weapons of its own. I think this shows that the horror of atomic bomb is not well enough understood in the world.
Several American cities, including New York, San Francisco, and Honolulu, have response plans for terrorist attacks.
Nuclear bombs are extremely deadly weapons, but their worst effects are confined to a limited zone. A government safety expert says its entirely possible to survive a nuclear explosion and its ...
On 8 January 2009, Schlesinger's task force released its report regarding the overall DoD's management of the country's nuclear weapons mission. The report criticized the DoD for a lack of focus and oversight on its nuclear weapons programs and recommended that the DoD create a new assistant secretary position to oversee its nuclear management.
The non-nuclear explosives in two of the weapons detonated upon impact with the ground, causing the dispersal of radioactive plutonium, which contaminated a 0.77-square-mile (2 km 2) area. The fourth, which fell into the Mediterranean Sea , was recovered intact after a search lasting two and a half months.