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美国阿雷西博射电望远镜设备平台坍塌

作者: 发布于:2020-12-14 08:56
The instrument platform of the 305-meter telescope at Arecibo Observatory1 in Puerto Rico collapsed2 overnight, according to the National Science Foundation. 美国国家科学基金会称,坐落波多黎各的直径达305米的凯时88kb88阿雷西博射电望远镜设备渠道一夜之间崩塌。   据美国有线电视新闻网(CNN)1日报导,NSF当天在推特上说,“阿雷西博射电望远镜的渠道一夜之间崩塌,所幸没有人员伤亡陈述。”   Engineers assessed the damage and determined3 that all three of the telescope's support towers broke off, sending the 900-ton instrument platform plummeting4 down to the dish below. The telescope's support cables also dropped. The observatory's learning center was significantly damaged by the falling cables as well. 工程师们评价并确认了损坏状况:望远镜的三个支撑塔悉数开裂,重达900吨的接纳渠道掉落到下面的碟形反射盘上。此外,望远镜的支撑钢缆也已开裂。望远镜的学习中心也被掉落的电缆严峻损坏。   据悉,阿雷西博望远镜于1963年建成,口径305米。在“我国天眼”FAST2016年9月建成前,阿雷西博望远镜是国际最大的单口径射电望远镜。   2017年飓风“玛丽亚”重创波多黎各,形成阿雷西博望远镜钢缆第一次开裂,尔后钢缆屡次呈现开裂。就在11月19日,NSF宣告,该望远镜将被封闭并以可控方法撤除,但相关方案还没施行,就发生了崩塌事端。   Following two cable breaks in August and November, experts determined that the radio telescope was so structurally5 unsound that it had to be decommissioned. 继8月和11月两次钢缆开裂后,专家们确认,阿雷西博危如累卵,将面对封闭。   长时间在阿雷西博天文台作业的物理学家门德斯(Abel Mendez)告知美国《商业内情》(Business Insider)记者,“当我得知此事时,我彻底溃散了(I was totally devastated)”。   "It's hard to take. It's like losing someone important in your life. Yeah, 2020 — it's not good." “我很难承受这个现实,这就像失掉了你生射中重要的人。2020年不太走运。”   门德斯表明,“现在仅有在做相似研讨的当地是我国500米口径球面射电望远镜,它比阿雷西博要活络。失掉阿雷西博,就失掉了一天24小时监控弱小无线电信号的才干,现在咱们只要一只眼睛了。”   "The only place that we have to do something like that, that'd be sensitive or more sensitive than Arecibo, is now FAST in China. ...The United States lost all that capability6 because it doesn't have Arecibo." “我国的500米口径球面射电望远镜(FAST)是仅有一个能做相似研讨的了,它比阿雷西博更活络。……没了阿雷西博,美国就失掉了这项身手。”   "If you are monitoring a source of interest which is in the weak radio spectrum7, you need two big radio telescopes: one pointing toward something during the day, and the other through the nighttime." “要监控弱小无线电信号,需求两个大型射电望远镜:一个在白日调查,另一个在夜间调查。”   "If you lose Arecibo, then you lose the ability to monitor — 24 hours a day — a faint source of radio signals. Now we just have one eye." “失掉阿雷西博,就失掉了一天24小时监控弱小无线电信号的才干。现在咱们只要一只眼睛了。”   《商业内情》称,美国失掉了其最优异的小行星和外星人搜索者(The US has lost its best asteroid8 hunter and alien seeker)。
1 observatory      n.天文台,气象台,瞭望台,观测台 参阅例句:
  • Guy's house was close to the observatory.盖伊的房子离天文台很近。
  • Officials from Greenwich Observatory have the clock checked twice a day.格林威治天文台的职工们每天对大钟检查两次。
2 collapsed      adj.坍毁的 参阅例句:
  • Jack collapsed in agony on the floor. 杰克非常痛苦地瘫倒在地板上。
  • The roof collapsed under the weight of snow. 房顶在雪的重压下忽然崩塌下来。
3 determined      adj.坚决的;有决计的 参阅例句:
  • I have determined on going to Tibet after graduation.我已决议结业后去西藏。
  • He determined to view the rooms behind the office.他决议检查一下办公室后边的房间。
4 plummeting      v.笔直落下,突然跌落( plummet的现在分词 ) 参阅例句:
  • Prices are rising, falling, going up, going down, shooting up, plummeting, etc. 物价在上涨、跌落、上升、下落、突然上涨、突然跌落等。 来自辞典例句
  • The enemy plane went plummeting into the sea. 敌机直直掉进海里。 来自辞典例句
5 structurally      在结构上 参阅例句:
  • The house roof was (structurally) unsound. 这房顶(结构)不结实。
  • Pinhole on shot-hole damage is never structurally significant. 针孔和蛀洞所形成的损害对结构的影响不大。
6 capability      n.才干;才干;(pl)可开展的才干或特性等 参阅例句:
  • She has the capability to become a very fine actress.她有潜力成为出色艺人。
  • Organizing a whole department is beyond his capability.安排整个部分是他才干以外的事。
7 spectrum      n.谱,光谱,频谱;规模,起伏,系列 参阅例句:
  • This is a kind of atomic spectrum.这是一种原子光谱。
  • We have known much of the constitution of the solar spectrum.关于太阳光谱的构成,咱们已了解不少。
8 asteroid      n.小行星;海盘车(动物) 参阅例句:
  • Astronomers have yet to witness an asteroid impact with another planet.天文学家还没有目睹过小行星碰击其它行星。
  • It's very unlikely that an asteroid will crash into Earth but the danger exists.小行星撞地球的可能性很小,但这样的风险仍是存在的。


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