• A bomb which derives its destructive power from the rapid release of nuclear energy by fission of heavy atomic nuclei, causing damage through heat, blast, and radioactivity.

  原子弹

  Example sentencesExamples

  • The FBI noted Einstein's fervent opposition to the dropping of the atom bomb on Hiroshima and Nagasaki.
  • That October, he formally exposed the military's secret plan to develop an atom bomb.
  • Now and then, historic images are etched in the mass mind: the awesome mushroom cloud of the atom bomb will forever represent the specter of nuclear destruction.
  • Britain developed its own atom bomb to remain a great power and avoid complete dependence on the United States, which was refusing to share atomic information.
  • As early as Truman, who refrained from using the atom bomb in Korea, the Americans realised the use of nuclear weapons was too awful to contemplate.
  • In order to have written this historical play, which deals indirectly with the dropping of the atom bomb on Hiroshima, Frayn had to have a pretty fair understanding of quantum physics.
  • The most fearsome new weapon of all - the atom bomb - was fortunately never available to Hitler.
  • Like his fellow scientists, Teller initially saw the atom bomb not as a weapon but as a deterrent.
  • In 1939 he wrote to President Roosevelt about the military potential of nuclear energy, greatly influencing the decision to build an atom bomb.
  • Bruno, a protégé of Enrico Fermi, was a world-class physicist whose work contributed to the making of the atom bomb.
  • The simple atom bomb owed its explosive power to the energy released by nuclear fission, or fusion.
  • It is also the anniversary of the dropping of the first atom bomb on Hiroshima, to be followed by the bomb for Nagasaki.
  • The blast was 600 times as violent as the Hiroshima atom bomb and shot a nuclear cloud more than 17 miles high into the air.
  • He recalled, almost apologetically, how beautiful the atom bomb was, marveling at how every color imaginable burst forth upon detonation.
  • There were no explosives or incendiaries within the rods; the sheer kinetic force of the rod falling and hitting the target had the explosive effect of an atom bomb.
  • Conversion is the first step in making enriched uranium that can be nuclear reactor fuel or atom bomb material.
  • The Japanese surrendered after the United States used a powerful new weapon, the atom bomb.
  • The physicist Joseph Rotblat was the only scientist to leave the project that developed the atom bomb, the Manhattan Project, for reasons of personal conscience.
  • In 1943 he went to the United States to work on the development of the atom bomb at Los Alamos.
  • For example, any discovery, whether it be the wheel, the printing press, or the atom bomb, cannot be neatly labeled and filed away in the pages of an encyclopaedia.
  • An atom bomb just 10 yards from a detector would generate a gravity wave signal a billion trillion times weaker than the one you could detect from a distant supernova exploding in our galaxy.

  Synonyms

  nuclear weapons, nuclear bombs, atom bombs, a-bombs

Such a bomb contains a critical mass of a material such as uranium-235 or plutonium-239, which when detonated by a conventional explosive charge is capable of maintaining a nuclear chain reaction, releasing large amounts of energy almost instantaneously