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 ?
The American B-29 Bockscar dropped its deadly load on Nagasaki three days after the first atom bomb landed on Hiroshima, killing at least 140,000.
A `crash programme' (after the Gulf War) aimed at diverting safeguarded research reactor fuel and recovering weapons-grade uranium for use in an atom bomb.
History is littered with one-way futurists who claimed the machine-gun, strategic bombing, or atom bomb, would win or end all wars.
Three days later, another atom bomb reduces Nagasaki, Japan, to rubble.
Alon feels that the current environment in Los Angeles resembles the 1950s atom bomb scares or the 1960s "the Russians are coming" furor.
In Music, the hottest sellers were U2's "How to Dismantle an Atom Bomb," Clay Aiken's "Merry Christmas with Love," Nirvana's box set "With the Lights Out," Allison Krauss and Union Station's "Lonely Runs Both Ways," Rod Stewart's "Stardust.
In an interview to private television channel Shakiri said that Islam has declared all weapons of mass destruction (WMDs) 'haram', which include nuclear weapons and the atom bomb.
During his 23-year military career, the great-grandfather saw active service in France and witnessed atom bomb testing.
Q league does not have Army, Atom Bomb or US but they have made the country, he emphasized.
TWENTY five years ago I interviewed a Litherland services veteran, who made a perfectly credible prima facie case that his chronic lung condition had been caused by British atom bomb tests in the Pacific and Australia, during the 50s.
The Soviet Union successfully tests an atom bomb, becoming the world's second nuclear power.
1945: The second atom bomb of World War II was dropped on the Japanese city of Nagasaki.