Atom Bomb

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atomic bomb

, atom bomb
a type of bomb in which the energy is provided by nuclear fission. Uranium-235 and plutonium-239 are the isotopes most commonly used in atomic bombs

Atom Bomb

 

a bomb with a nuclear charge dropped from aircraft. The first atom bombs were made in the USA at the end of World War II. The explosion of an atom bomb releases a tremendous amount of nuclear energy. In July 1945 the Americans tested the atom bomb and then dropped two bombs with the equivalent of 20,000 tons of TNT on the Japanese cities of Hiroshima (Aug. 6) and Nagasaki (Aug. 9, 1945). The explosion of the atom bombs caused great destruction in these cities and enormous casualties among the peaceful civilian population. More than 140,000 people were killed or wounded in Hiroshima and about 75,000 in Nagasaki. Subsequently several hundred thousand people died as a result of the aftereffects of the atomic bombardment. The use of the atom bombs was not caused by any military necessity. The American ruling circles gambled on a temporary US monopoly in nuclear weaponry and tried to use it to intimidate freedom-loving peoples. But the atomic “secrets” were discovered as early as 1947 by Soviet scientists headed by Academician I. V. Kurchatov; in August 1949 the USSR made an experimental explosion of an atomic device, which led to the end of any possibility of atomic blackmail. The term “atom bomb” is now rarely used.

References in periodicals archive ?
Therefore, taking into account the other political, economic and scientific-technical data mentioned above and known to the author in general terms, it is quite possible to conclude that the United States during the military period of 1942-1945, in comparison with the opposing sides-parties of the Second World War, had the most favorable chances of succeeding first in the development and creation of the first atomic bombs.
Sunao Tsuboi, the 91-year-old chairman of the Hiroshima branch of atomic bomb victims, "gripped Obama's hand and would not let go until he had spoken to him for some time," The New York Times reported.
Three days after the atomic bomb was dropped in Hiroshima, a second bomb was dropped on Nagasaki.
Nevertheless, those hibakusha, atomic bomb survivors, whose bodies were eaten away by radiation, and who continue to suffer from the aftereffects, can never forget that day.
The book concludes with a short survey of the literature and a discussion of postwar thought on nuclear weapons, describing how people came to see the atomic bomb as special, even revolutionary.
This book is especially interesting and beneficial when it details and assesses the combined impact of the American atomic bombs and the Soviet military actions against Japan on the peace party within the Japanese government and Japanese diplomacy.
As his soldiers were approaching the Elbe, Joseph Stalin was avidly reading reports from his spies in America (he knew about the atomic bomb well before Harry Truman) and mulling how far he could expand his borders without earning America's ire.
This Horrifying Image shows a young boy scarred by the atomic bomb dropped on Nagasaki in August 1945.
This exhibit was commissioned by the Smithsonian to mark the fiftieth anniversary of the famous plane's flight which dropped the atomic bomb on Hiroshima.
Fortunately, President Harry Truman had the courage to order use of the atomic bomb against the last holdout, Japan.
Dennison, together with Yoshiro Yamawaki, who had survived the dropping of the atomic bombs on Japan at the end of World War II, lit candles at the ceremony which was filmed by British and Japanese television companies.
Dear and his associates had such considerations in mind when they planned to commemorate the fiftieth anniversary of the dropping of the atomic bombs, by means of a summer-long campaign of non-violence at the Pentagon under the theme, "Remembering the Pain, Repenting the Sin, Reclaiming the Future.