Tidal forces rapidly synchronized the Moon's spin and orbital period, so that one face always pointed toward Earth.

引潮力迅速同步了月球的自转与公转，因此月球总是以同一面指向地球。

The planet might have been torn apart by its star's " tidal forces" .

这颗行星可能已经被其母恒星的" 潮汐力" 撕裂了。

And we believe that these patterns are due to tidal forces that crack it.

我们认为那种现象是潮汐的力量在破碎。

And this is where tidal forces become very important.

这也是为什么引潮力很重要的原因。

The gravitational tidal forces of that star affect the planet unevenly, stretching it at the equator.

这颗恒星的引力，潮汐力对行星的影响不均匀，从赤道处将行星拉长。

The farther away the affected object is, the lower the tidal force will be.

距离越远，引潮力就越弱。

The overall effect of the tidal force is to stretch an object.

引潮力的总体效果是拉伸物体。

Tides depend on gravity, and if gravity is weaker, so is the tidal force.

潮汐取决于引力，如果引力较弱，潮汐力也就较弱。

And now locked in the giant planet's deadly embrace, tidal forces begin to tear the comet apart.

现在，彗星被锁在这颗巨行星致命的怀抱中，潮汐力开始撕裂这颗彗星。

The Moon's tidal force aligns with the Sun's, reinforcing it.

月球的引潮力与太阳方向一致，叠加在了一起。

Of course without the moon, the tidal forces on the world's oceans and lakes would drop dramatically as well.

当然，没有了月亮，世界上海洋和湖泊的潮汐力也会大幅下降。

When you have a massive object affecting another object with its gravity, its tidal force depends on several factors.

当一个巨大的物体通过引力影响另一个物体时，它的引潮力取决于几个因素。

This change in the force of gravity over distance is what astronomers call the tidal force.

这种由于距离造成的引力改变被天文学家成为引潮力。

This is probably the weirdest thing about tidal forces.

这恐怕就是引潮力最奇怪的地方了。

This process is aided by collisions with gas clouds and the tidal forces of the collected stars in the galaxy itself.

这一过程是由气体云的碰撞和星系中收集的恒星的潮汐力所辅助的。

When a smaller body passes near a much bigger one, tidal forces created by the larger body can destroy the smaller one.

当一个较小的物体经过一个大得多的物体附近时，较大的物体产生的潮汐力可以摧毁较小的物体。

The tidal force stretches the solid Earth by about 30 centimeters.

引潮力会拉伸地球的固态部分大约30厘米。

The water bulges up where the tidal force is strongest, on opposite sides of the Earth.

在引潮力最强的地方，也就是在地球的两侧，水会形成凸起。

The wider it is, the more the force of gravity from the first object changes across it, and the bigger the tidal force.

它越宽，来自第一个物体作用在它上面引力的变化就越大，引潮力也就越大。

The way the Sun's tidal force and the Moon's tidal force interact on Earth depends on their geometry, which changes as the Moon orbits us.

具体太阳和月球的引潮力如何相互作用取决于它们的几何位置，而这个位置随着月球公转而不断变化。