The force of one such high velocity impact created tremendous heat.

这种高强度撞击产生了超高温。

The other, a planetary carcass gouged by millions of high velocity impacts.

另一个，一片死寂形成于大量碰撞。

Sometimes the two galaxies will collide at high enough velocity that they pass right through each other!

有时，这两个星系会以足够高的速度碰撞，使它们直接穿过对方！

All of this stuff mindlessly orbiting around the Earth will eventually result in collisions between them at extremely high velocities.

这一切的东西盲目地绕着地球最终将导致它们之间在很快的速度碰撞。

If you start going in a very, very high velocity toward the ocean, you can't pull the aircraft out of the dive.

如果飞机开始以极高速向海洋前进，那飞机员无法将飞机从急降中抬升。

And they also have an unbelievably high velocity.

而且它们还具有令人难以置信的高速度。

Never use, what I call high velocity words.

永远不要使用我称之为高速词的东西。

Venus fell down with high velocity.

维纳斯以高速度坠地。

(both laughing) But something more aerodynamic would have a higher terminal velocity.

（两人都笑了）但是更符合空气动力学的东西会有更高的终端速度。

A spacecraft would arrive at such high velocity it would need to haul a prohibitive amount of heavy fuel in order to slow down enough.

航天器将以极高的速度到达那里，它需要携带大量的重型燃料才能减速。

So these air particles are pushed outward at a very, very high velocity out the back of the engines.

因此，这些空气颗粒以非常非常高的速度从发动机后部向外推。

Even the surface of the joints is offset  to avoid the possibility of a protrusion into the high velocity flow.

甚至接头的表面也是偏移的，以避免突出到高速流中的可能性。

And the larger raindrops have a higher weight to surface area ratio, and so they have a higher terminal velocity, so they will be falling faster.

较大的雨滴具有更高的重量与表面积比，因此它们具有更高的终端速度，因此它们会落得更快。

Mercury has weaker gravity, so it doesn't pull in impactors as hard as the Earth does, but it orbits the Sun far faster than Earth does, so asteroids and comets tend to hit at higher velocity.

水星的引力较弱，所以它不像地球那样强烈地吸引撞击物，但它的公转的速度比地球快得多，所以小行星和彗星往往会以更高的相对速度撞击。

[Derek] Narrow metal pens might still be dangerous, but these plastic ones still seem to have too much drag relative to their weight for them to achieve a high terminal velocity.

- [Derek] 窄金属笔可能仍然很危险，但这些塑料笔相对于其重量似乎仍然有太大的阻力， 无法达到较高的最终速度。

Once the asteroids are spotted and their orbits determined, an earthbound asteroid can be nudged slightly off course with a satellite deflector or a high velocity projectile, or blown up with nuclear weapons, causing it to miss its deadly rendezvous.

一旦小行星被观测到并且确定其轨道, 卫星偏转器或高速射弹, 或动用核武器可以使目标地球的小行星稍微偏离原有路线, 让这次致命的约会永远泡汤。

So the stronger the gravity of a planet, the  higher the escape velocity you need, and black holes are the most extreme example of this where  the escape velocity exceeds the speed of light.

因此， 行星的引力越强，你需要的逃逸速度就越高，而黑洞就是逃逸速度超过光速的最极端的例子。