英文字典,中文字典,查询,解释,review.php


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       


安装中文字典英文字典辞典工具!

安装中文字典英文字典辞典工具!










  • Bunker-buster bombs and Irans Fordo nuclear facility: heres what to . . .
    The bomb carries a conventional warhead, but the International Atomic Energy Agency has confirmed that Iran is producing highly enriched uranium at Fordo, which had raised the possibility that nuclear material could be released into the area if the GBU-57 A B were used to hit the facility Initial assessments by the IAEA, however, were that
  • How to Build a Nuclear Bomb - McMaster University
    So you want to design a bomb… Considerations: We need a fast chain reaction of fissions • Mean free path • Critical mass Trigger design • How the bomb is detonated Output and efficiency • Energy ouput of explosion • How much uranium underwent fission
  • Building the Bomb - 1943 - Nuclear Museum
    Los Alamos was home to the design work on the bomb mechanisms Oak Ridge and Hanford, by contrast, were devoted to engineering and industrial processes Speed was of the essence for the Manhattan Project, so rather than try to find the most efficient method to produce an atomic bomb, Groves ordered that all possible methods should be pursued
  • History of Nuclear Engineering Part 2: Building the Bomb
    IN AUGUST 1941, the results of the UK project to build an atom bomb, codenamed Tube Alloys, were handed over to the US with a promise that all results would be shared in a joint effort eventually called the Manhattan Project
  • If a U. S. bunker buster hits a nuclear site, what might get . . . - NPR
    If the U S does drop a powerful "bunker buster" bomb on a suspected underground nuclear weapons site in Iran, experts in radiation hazards see little risk of widespread contamination
  • Manhattan Project: Science gt; BOMB DESIGN AND COMPONENTS - OSTI. GOV
    The first atomic bomb, the Trinity test of July 16, 1945, used the implosion design, as did the bomb dropped on Nagasaki The bomb used at Hiroshima used the gun-type design These designs had sophisticated components, which had to be designed for the new weapons
  • A Long Way Down: What It Takes to Hit Iran’s Deepest Nuclear Site
    The U S military has concluded that one bomb would not destroy the Fordo facility on its own To destroy the site, an attack would have to come in waves, with bombers releasing one after another
  • Science Behind the Atom Bomb - Nuclear Museum
    The immense destructive power of atomic weapons derives from a sudden release of energy produced by splitting the nuclei of the fissile elements making up the bombs’ core The U S developed two types of atomic bombs during the Second World War


















中文字典-英文字典  2005-2009