<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          US dismantles last of powerful nuclear bombs

          Updated: 2011-10-25 17:17

          (Agencies)

            Comments() Print Mail Large Medium  Small 分享按鈕 0

          US dismantles last of powerful nuclear bombs

          ?A B53 bomb is seen in this handout taken October 19, 2011 and released October 20, 2011. [Photo/Agencies]

          AMARILLO, Texas?- The last of the nation's most powerful nuclear bombs, a weapon hundreds of times stronger than the bomb dropped on Hiroshima, is being disassembled nearly half a century after it was put into service at the height of the Cold War.

          The final components of the B53 bomb will be broken down Tuesday at the Pantex Plant near Amarillo, the nation's only nuclear weapons assembly and disassembly facility. The completion of the dismantling program is a year ahead of schedule, according to the US Department of Energy's National Nuclear Security Administration, and aligns with President Barack Obama's goal of reducing the number of nuclear weapons.

          Thomas D'Agostino, the nuclear administration's chief, called the bomb's elimination a "significant milestone."

          First put into service in 1962, when Cold War tensions peaked during the Cuban Missile Crisis, the B53 weighed 10,000 pounds and was the size of a minivan. According to the American Federation of Scientists, it was 600 times more powerful than the atomic bomb dropped on Hiroshima, Japan, at the end of World War II.

          The B53 was designed to destroy facilities deep underground, and it was carried by B-52 bombers.

          Since it was made using older technology by engineers who have since retired or died, developing a disassembly process took time. Engineers had to develop complex tools and new procedures to ensure safety.

          "We knew going in that this was going to be a challenging project, and we put together an outstanding team with all of our partners to develop a way to achieve this objective safely and efficiently," said John Woolery, the plant's general manager.

          Many of the B53s were disassembled in the 1980s, but a significant number remained in the US arsenal until they were retired from the stockpile in 1997. Pantex spokesman Greg Cunningham said he couldn't comment on how many of the bombs have been disassembled at the Texas plant.

          The weapon is considered dismantled when the roughly 300 pounds of high explosives inside are separated from the special nuclear material, known as the pit. The uranium pits from bombs dismantled at Pantex will be stored on an interim basis at the plant, Cunningham said.

          The material and components are then processed, which includes sanitizing, recycling and disposal, the National Nuclear Security Administration said last fall when it announced the Texas plant's role in the B53 dismantling.

          The plant will play a large role in similar projects as older weapons are retired from the US's nuclear arsenal.

          主站蜘蛛池模板: 欧美成人精品三级在线观看| 中文国产成人精品久久不卡 | 国产叼嘿视频一区二区三区| 国产V日韩V亚洲欧美久久| 午夜精品福利亚洲国产| 色综合AV综合无码综合网站| 国产黄色一区二区三区四区| 99热久久只有这里是精品| 国产情侣激情在线对白| 亚洲自偷自拍熟女另类| 国产无遮挡免费视频免费| 亚洲国产精品毛片在线看| 97精品亚成在人线免视频| 免费VA国产高清大片在线| 巨胸美乳无码人妻视频| 超碰伊人久久大香线蕉综合| 精品国产粉嫩内射白浆内射双马尾| 亚洲婷婷综合色高清在线| 亚洲悠悠色综合中文字幕| 久久精品av国产一区二区| 国产成人精品性色av麻豆| 日本中文字幕一区二区三| 精品嫩模福利一区二区蜜臀| 性色av不卡一区二区三区| 中文国产人精品久久蜜桃| 国产肥臀视频一区二区三区| 欧美激情一区二区三区成人| 秋霞在线观看片无码免费不卡| 国产精品亚洲综合久久小说| 亚洲中文字幕一二三四五六| 免费国产一级特黄aa大片在线| 国产精品深夜福利在线观看| 久女女热精品视频在线观看| 精品在线观看视频二区| 亚洲欧美日韩另类| 国产成人高清精品免费软件| 国产18禁一区二区三区| 亚洲精品区午夜亚洲精品区| 免费观看成年欧美1314www色| 国产国语一级毛片在线视频| 亚洲精品中文字幕二区|