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些奇怪的事情。

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，烹饪也不例外。

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，神奇的失重感或许并不那么有趣。

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

这只发生在失重状态下的健康问题的一个例子。

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

在这里，他们演示了力如何在失重的环境工作的。

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，她从太空舱降落。

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。

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？

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

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

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

然后，学家们将看到洗涤剂的化合物遭遇6个月的失重后有何反应。

Glenn will be weightless for nearly five hours.

Glenn 将经历五个小时的失重。

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。

In total, the cast and crew took 612 flights, adding up to nearly four hours of weightlessness.

演员和工作人员们总共进行了 612 次飞行，经历了加起来近四个小时的失重。

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。

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，它们感受到了一种奇怪的失重感。

At the time, the effects of launches and weightlessness on the human body were still poorly understood.

那时，人们对发射及失重对人体产生的影响仍知之甚少。

Space station astronauts exercise two hours every day to fight the effects of weightlessness on their bodies.

空间站宇航员每天会锻炼两个小时来对抗失重对他们身体的影响。

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，而且太空里失重的，所以还引发一些困难。

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。

The Earth spins faster along the equator, so the impact of zero gravity would be felt hardest there.

地球沿着赤道旋转得更快，所以，失重对赤道附近的影响最严重的。