They also fly very well in a weightless environment.

它们在失重环境下也能飞得很好。

The words we say are weightless sounds in the air.

我们说的话在空气里是没有重量的。

So why then are astronauts on the space station “weightless”?

那么为什么空间站上的宇航员会“失重”呢？

This render all passengers weightless for 25 seconds, no wires needed.

这会使所有乘客在 25 秒内失重，因此不需要威亚。

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。

All you need is a jetliner, a parabola and voila, you're weightless.

你需要的只是一架客机, 飞行个抛物线, 然后看看自己, 你已经失重了。

The words we say are weightless sounds in the air. But they are powerful.

我们说的话听起来感觉没有什么重量。但它们很有影响力。

It's designed for when you're weightless and having this unbelievable perspective of our planet.

为了能在失重时看到令人称奇的地球景色而做的设计部分。

Once we get in the water, all of that becomes neutral and weightless.

一旦我们落入水中，所有的一切都变得中性和失重。

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，这也是一个失重的美丽世界。