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

的环境下, 人类的身体会出现一些奇怪的事情。

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

，他演示了力是如何的环境中工作的。

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

当的“多面体”散开时，一场场剧目正上演。

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

但我个美丽的世界，也是一个的美丽世界。

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

当航天员漂浮的太空时，他的肌肉不需要像地球上一样辛苦地工作。

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

8年前，王亚平向学生展示了物理定律，着演示了太空中的有趣现象。

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

只是发生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.

不过现我知道了，神奇的或许并不是那么有趣。

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

经历了约5分钟的状态后，她从太空舱中跳伞降落。

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的公司为人提供了不必去轨道就可体验的机会。

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

当它向上滑行到60公的高度时，它受到了一种奇怪的。

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

然后，科学家将看到洗涤剂中的化合物遭遇6个月的后有何反应。

Here, in the weightlessness of space, they learned the arts of leadership, sacrifice, and most importantly, survival.

，的太空中，他学会了领导艺术、牺牲艺术，以及最要的生存艺术。

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

那时，人对发射及对人体产生的影响仍知之甚少。

He built a micro-gravity simulator to test how C. elegans would perform in the actual zero gravity of space.

他建造了一个微力模拟器，来测试线虫太空状态下的情况。

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

演员和工作人员总共进行了 612 次飞行，经历了加起来近四个小时的。

But what do astronauts have to do before they go into space to prepare themselves for weightlessness and spacewalking?

但是，宇航员去太空之前会为太空的和太空行走做什么准备工作？

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对他身体的影响。

Within the body, short-term weightlessness is mostly harmless.

体内，短期大多是无害的。

Digital doubles allowed filmmakers to conquer more challenging weightless scenes, like these wide shots of crew outside the ather.

数字捕捉技术使电影制作人能够征服更具挑战性的场景，比如些太空之外的宽镜头。