3篇尚未收入的阅读考古

sonic217

我都没见过

小情歌璇

版主辛苦了

lynnzhou83

谢谢！！！

susliks

这个是什么啊？是JJ么？前面汇总里面没有啊。。。

匆匆淼

补充版主的   53 radio telescope
阅读1
讲什么美国有个新技术呀，他们在xxx地方造了一堆类似雷达的东西，一共有十个，长得跟卫星电视接收器似的，每个重多少多少，直径多少多少。这个东西可以干嘛呢？它可以发射wave stronger than light do，然后十个对准一个object就能得到非常非常清楚的图像啦，举了例子说明了下有多精确。这个东西怎么运作呢？它们还有一个超级超级厉害的钟，把接收到的信息和钟的信息一起做成磁带，每天送到一个yyy地方，那里的科学家再把它们拼起来。而且它们也是统一由那个地方远程控制的。第三段是说这个东西的application的，说astronomer可以用它看什么什么东西，准确到就像可以看到月亮上有棒球（还是什麽球？）。还说，geologist也可以用它们研究地球的什麽什麽东西。。。
问题有一个是，这篇文章说了啥？我选的是介绍一个新技术，然后说它是怎么运作的，我刚才google了一下，终于在搜索结果的提醒下记起来那个东西叫Very Long Baseline Array（VLBA中文叫甚长基线干涉阵）
附搜到的背景资料：
From Wiki:
The Very Long Baseline Array (VLBA) is a system of ten radio telescopes controlled remotely from the Array Operations Center in Socorro, New Mexico (USA) by the National Radio Astronomy Observatory. The array works together as the world's largest dedicated, full-time astronomical instrument using the technique of very long baseline interferometry. Its construction began in February 1986, and was completed in May 1993. The first observation using all ten sites occurred in May 29, 1993. The total construction cost was US$85 million.
Each VLBA station consists of an 82-foot (25 m) diameter dish antenna and an adjacent control building which houses the station computer, tape recorders and other equipment associated with collecting the radio signals gathered by the antenna. Each antenna weighs 240 short tons (218 t) and is nearly as tall as a ten story building when pointed straight up. The longest baseline in the array is 8,611 kilometres (5,351 mi).
一个类似官网的介绍http://www.aoc.nrao.edu/intro/NM_astro.html，比较长，有兴趣的看看