Likewise, when in outer space, when you are orbiting the Earth, people are always floating around in these space stations.

就好比在外太空,当你在绕地球运行时,宇航员总是悬浮在太空站

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But if you go to outer space nowadays, you can find truly inertial frames of reference.

但如今,要是你到了外太空,你可以找到真正的惯性参考系

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Does outer space even rob you of something to which you can anchor a spring?

在外太空中你是否,不再能够固定住弹簧

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Nowadays, if you go to outer space, you can check for yourself that if you throw something out, it just goes on forever without your intervention.

现如今,如果你去了外太空,你可以向外抛个物体试试,如果你不打断它,它就会一直运动下去

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He said, take a spring to outer space and we'll hook up some objects to them and see how fast they move and do a comparison.

他说,把一个弹簧带到外太空,往上面挂物体,看看它们运动的快慢,并进行对比

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Remember, when we hang the elephant in outer space, nothing is going to happen.

记住,如果我们在外太空悬挂一头大象,弹簧是不会有变化的

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Imagine that this is in outer space where there is no gravity for now.

就假设现在这是在没有重力的外太空

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You can go in outer space-- No, it won't move very much.

你能到外太空去,是的,它不能跑得太远

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You can anchor things to objects in outer space.

你能将一些东西固定在外太空中的物体上

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For example, in outer space, you've got an astronaut.

比如在外太空,假如你是宇航员

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But suppose you were in outer space.

但假如你在外太空

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In fact, there's a property of gravitational fields anywhere, even in outer space, but there is some residual field between all the planets and all the stars in the universe, that the force on a body is proportional to the mass of the body.

实际上,这是任何地方的引力场都具备的属性,甚至是在外太空,在所有的行星和恒星之间,存在着某种剩余场,在这个场里作用在物体上的力,和物体的质量之间存在比例关系

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