我们怎么知道地球是一个更小的球，绕着其中一颗恒星——太阳转呢？
How do we know that the Earth is a smaller ball turning around one of those stars, the Sun?
哥白尼在1543年提出了一个理论，即我们所知道的所有行星不是绕着地球转，而是绕着太阳转的，这一理论后来得到了伽利略的支持，但伽利略本人也为此付出了代价。
Copernicus theorized in 1543 that all of the planets that we knew of revolved not around the Earth, but the Sun, a system that was later upheld by Galileo at his own expense.
地球需要24小时才能转一圈，回到相对于太阳的起始位置。
The earth needs 24 hours to turn round once and get back to its starting place with the sun.
一般的感觉告诉我们太阳绕着地球转，有人同意我吗？
Common sense says the sun goes around the earth. Who agrees with me?
我们发现月球环绕地球的轨道总是圆周形--或很近似圆周形。每一个月，或者更确切些说是每27又1/3天就环绕地球转一圈。
We find that it is traveling in a circle - or very nearly a circle - round the earth, going completely round once a month, or, more exactly, once very 27 1/3 days.
从一般的认识上来说，太阳绕着地球转。
一般的感觉告诉我们太阳绕着地球转，有人同意我吗？
Common sense says the sun goes around the earth. Who agrees with me? Look at it!
笛卡尔也总结出地球是绕着太阳转的。
我仅做个抽查——你们中有多少人知道伽利略说地球绕着太阳转的证据？
Let me just check — how many of you know the evidence for Galileo to say that the Earth was going around the sun?
试卷最后一个问题问得不错：“运用现代天文学资料，尽你所能，构建一种证据，可以证明太阳是绕着地球转的。”
The question at the end, a good one: "Using modern astronomical data, construct, to the best of your ability, a proof that the Sun revolves around the Earth."
它围绕体积巨大的红色恒星Gilese 581公转，属于天秤座，距地球20.5光年。
It orbits a massive red star called Gilese 581, located in the Libra constellation, 20.5 light years from Earth.
伽利略错了，地球并不是围绕着太阳转的，它是围绕这你转的，并且几十年来一直如此。
Galileo got it wrong. The earth does not revolve around the sun. It revolves around you and has been doing so for decades.
然后再想象一下在严格数学化的物理时代之前只身对抗各种显而易见的质疑的困难吧：如果地球转的这么快我们为什么没有被甩离地球？
Then imagine the difficulties of defending it against the obvious criticisms in an era before mathematically rigorous physics: why are we not flung from the Earth if it spins round so fast?
地球绕着太阳转还是太阳绕着地球转，这只是个无足轻重的问题。
Whether the earth or the sun revolves around the other is a matter of profound indifference.
他指着天上的星星解释说它们都是绕着地球转的，就太阳不是。
He showed her the stars in the sky and explained that they circled the Earth, along with the Sun.
然而哥白尼会吃惊的，因为1999年进行的民调显示，仍有20%的美国人认为太阳围绕地球转。
Copernicus be damned, 20 percent of Americans were still sure in 1999 that the sun revolved around the Earth.
生活就像不断向你投曲线球一样，这很正常，因为地球不是围绕着你来转的。
Life likes to throw you curve balls every now and then. This is normal and remember the world isn’t out to get you.
一般的感觉告诉我们太阳绕着地球转，有人同意我吗？
Common sense says the sun goes around the earth.Who agrees with me? Look at it!
或者谁说教堂因为伽利略那地球绕太阳转的荒谬理论（实际上是他的直肠医生写的）而让其闭嘴是不对的？
Or that the Church wasn’t right to silence Galileo, with his absurd theory (actually written by his proctologist) that the earth moves around the sun.
自从克劳迪亚斯·托米勒在公元二世纪发表了《天文学大成》以来，几乎所有的宇宙学家都深信地球处于宇宙的中心，而太阳、行星和其他恒星被认为绕着地球一天转一回。
Ever since Claudius Ptolemy published the "Almagest" in the second century AD, almost all astronomers had believed that the Earth lay at the centre of the universe.
假设地球绕这太阳转，的轨道是个圆圈。
Let's take the Earth going around the sun, and let's approximate the orbit by a circle.
但是月亮是全部时间都围绕着地球转的。
伽利略错了，地球并不是围绕着太阳转的，它是围绕这你转的，并且几十年来一直如此。
Galileo got it wrong. The earth does not revolve around the sun.
我知道我们的星球是一个多岩石的星球，在银河系1000亿多个行星中围绕着一个星球在转，地球只是整个宇宙几千亿个星球之一。
I'd learned that our world is a rocky planet, orbiting one star among the 100 billion others in our galaxy, which is but one of hundreds of billions of galaxies scattered throughout the universe.
著名的亚历山大艾伦将这个问题予以阐述，他提出太阳绕着地球转,金星则绕着地球和太阳之间轨道进行圆周运动。
well the way it was done was develop by an Alexandrian Allen , very famous , he had the sun moving around the earth and Venus orbiting around the point on the line between the earth and the sun.
正如我们所知道的那样，地球绕着太阳转。
他指出地球是围绕太阳转的。
木星是地球的5倍远，因此木星转一圈的，时间是5的1。5次方。
Jupiter is five times further away than the Earth, and so the time for Jupiter to go around goes with five to the power 1?.
木星是地球的5倍远，因此木星转一圈的，时间是5的1。5次方。
Jupiter is five times further away than the Earth, and so the time for Jupiter to go around goes with five to the power 1?.
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