Which seems to imply that when traveling exactly wind speed, you should get infinite force.

这似乎意味着，当以风速行驶时，你应该获得无限的力。

We're about to travel almost the speed of light, or to be specific, almost 670 million miles per hour.

我们即将以接近光速的速度前进，具体来说，接近每小时6.7亿英里。

It travels as fast as several times the speed of sound.

它的传播速度是音速的几倍。

Once at sea, there were no physical points  of reference for position or traveling speed.

一旦在海上，就没有位置或行进速度的物理参考点。

And our first story concerns a weapon that said to be hypersonic, meaning it would travel at several times the speed of sound.

我们的第一个故事是关于一个据说是特超音速的武器，这意味着它的传播速度是音速的几倍。

The new weapon is called hypersonic because of its extremely high speed. It travels as fast as several times the speed of sound.

这类新型导弹之所以叫高超音速是因为其速度极快，是声速的数倍。

Stella's ship will travel at 86.6% the speed of light to visit a star that is 10 light-years away, then return to Earth at the same speed.

史黛拉的飞船将去拜访距我们 10 光年的一颗恒星，飞船速度是光速的 86.6％，然后再以同样速度返回地球。

And if you wanted to communicate with somebody back at home, it would take a message about two and a half seconds to travel between you and them since that's how fast the speed of light can travel at.

如果你想和家里的人交流，信息在你和他们之间来回传播大约需要两秒半的时间，因为这是光的的传播速度。