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英语煎蛋小学堂视频百科128:我们为何要将望远镜送入太空?(MP3+中英双语)

cocotang 于2015-11-02发布 l 已有人浏览
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英语视频:煎蛋小学堂128:我们为何要将望远镜送入太空?,以幽默诙谐的方式为你解答那些那些你意想不到的科学小知识,含有中英双语字幕视频,mp3下载。
    小E英语欢迎您,请点击播放按钮开始播放……

If the purpose of a telescope is to bring far-away things closer to us,then why do we send some of them so far away ?The main reason to put a telescope into space is to avoid that perpetual trouble maker:the atmosphere since astronomenrs haven't yet figured out how to get rid of it.And it's a big nuisance.

如果说望远镜的任务是将远处物体呈现在我们面前,那么,我们为何将望远镜送去远方呢?将望远镜送入太空的主要目的是为了避开麻烦制造者:大气层,因数天文学家尚未找出摆脱大气影响的方法.这问题相当恼人.

First off,the atmosphere plane gets in the way,what with its clouds and smoke and haze than can block light from distant stars or nearby planets.And even just the air in a clear sky blocks a huge range of the wavelengths of lights,pretty much only letting through visible light,anda smattering of infra-red and radio waves.

首先 大气平面挡在中间,其中的云、烟、霾会挡住远处星星和近处行星发出的光。即便晴空万里 光是空气就会挡住很大范围的光波波段,几乎只允许可见光、以及少数红外光和无线电波通过。

The atmosphere is also -HEY! Stop that!...Distracting At day,visible light from the sun bounces off of air molecules,and other small particles and completely overwhelms the light from any other star you might want to look at.At night,the light from the moon and from human sources bounces off the same paricles and outshines the light from most distant and faint stars and galaxies,washing out their images.

此外大气层还会 -嘿!住手!……造成散射,白天 来自太阳的可见光被空气分子和其他微粒反射 这会令来自其他恒星的光完全被淹没 无法观测。晚上 月光和人造光源同样被这些粒子散射而来自遥远星星、暗星和银河的光,彻底被淹没其中。

The atmosphere also messes things up.Air is constantly moving,and just like a heat mirage,this turbulence blurs and distorts starlight,which causes stars to twinkle,and telescope images of stars to be blurry We can avoid all of these nuisances by putting telescopes above the atmosphere,in space.Plus,there are other benefits;A space telescope can make observations 24 hours a day.

大气也会令事情一片混乱。空气是流动的,就像海市蜃楼 这些星光会因紊变得模糊扭曲,星星因此而闪烁不停 望远镜看到的星图变得模糊不清,将望远镜移至大气之上的太空中 可以避免所有上述问题。此外 还有其他好处;太空望远镜可以24小时持续观测。

A space telescope can be put far enough away from the earth's infra-red warmth and then cooled down really cold so that it can take clean infra-red images,and a space telescope is a telescope we freaking put in outer sapce!Of course,there are some downsides to space telescopes;It;s hard and expensive to get them there,hard and expensive to fix them if they break or you want to upgrade to newer fancier parts,hard and expensive to take people there on tours,but really,How can you argue,with"this".And this,And this,And this,And even this,And this,And this,This too,And this.

太空望远镜可以远离地球的红外线温度冷却到足够低的温度 以拍摄清晰的红外线图像,将望远镜送入太空是我们的最佳选择!当然 天空望远镜也有缺点;首先将它们送进太空就超难超贵,出现问题时维修或是升级新功能也是超难贵,安排人员巡查也是超难贵,但是说真的 看到这个时简直无法抱怨。还有这个、以及这个、这个、这个、这个、这个、甚至这个、这个,还有这个、这个。

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