In the absence of gravity, the human body does some bizarre things.

在失重的环境下, 人类的身体会出现一的事情。

Could they operate all right in zero gravity?

在完全失重的情况下他们能正常工作吗？

And that zeroes each other out, so you actually feel this like weightless feeling.

这两者相互抵消，所以你会有一种失重的感觉。

Here they're demonstrating how forces work in a weightless environment.

在这里，他们演示了力是如何在失重的环境中工作的。

Weightlessness creates issues for everything aboard the ISS, and cooking is no exception.

国际空间站上的所有行动都会受到失重的影响，烹饪不例外。

When the floating " polyhedron" is unfolded, a series of plays are released from the box.

当失重的“多面体”散开时，一场场剧目正在上演。

But we're down here in this beautiful world and it is also a weightless, beautiful world.

但我们在这个美丽的世界里，这是一个失重的美丽世界。

When astronauts float weightless in space, their muscles don't need to work as hard as on Earth.

当航天员漂浮在失重的太空时，他们的肌肉不需要像在地球上一样辛苦地工作。

Immersed in a tank of water, the astronauts neither sink nor float, creating a sensation close to weightlessness.

航员会置身于一缸水里，在其中，他们既不会漂浮不会下沉，这就营造了一种类似失重的体验。

The thick pressurized gloves make grasping tools difficult, while the weightlessness of space creates its own issues.

由于太空服厚厚的手套经过了密封，所以拿工具就成了一件难事，而且太空里是失重的，所以还引发一困难。

Glenn will be weightless for nearly five hours.

Glenn 将经历五个小时的失重。

Eight years ago, Wang showed students the laws of physics and focused on the interesting phenomenon of weightlessness in space.

8年前，王亚平向学生们展示了物理定律，着重演示了太空中失重的有趣现象。

That's just one example of health problems that occur in zero-gravity.

这只是发生在失重状态下的健康问题的一个例子。

But now we've learned that the magical feeling of weightlessness can become much less fun.

不过现在我们知道了，神的失重感或许并不是那么有趣。

After experiencing weightlessness for about five minutes, she parachuted back down in a capsule.

在经历了约5分钟的失重状态后，她从太空舱中跳伞降落。

Weightlessness caused by a lack of gravity can lead to a loss of bone and muscle mass.

因缺乏引力造成的失重会导致骨骼和肌肉的流失。

NASA's biggest concern...Shepard and Grissom were weightless for five minutes.

NASA 最关注的是......Shepard 和 Grissom 经历了五分钟的失重。

One company attending the show called ZERO G offers people an opportunity to experience weightlessness without having to go into orbit.

参加展会的一家名为ZERO G的公司为人们提供了不必去轨道就可体验失重的机会。

They experienced the strange feeling of weightlessness as they coasted upward to an altitude of 60 kilometers.

当它们向上滑行到60公里的高度时，它们感受到了一种的失重感。

Scientists will then see how the compounds in the detergent react to six months of weightlessness.

然后，科学家们将看到洗涤剂中的化合物遭遇6个月的失重后有何反应。