These are sand simulations with different cohesion values.

这些是关于不同内聚力值的沙地模拟。

They pull on each other and create a relatively strong cohesive force that traps you.

他们互相拉扯并形成相当强的内聚力把你困住。

That's what creates surface tension and it has a property called cohesion.

这就是产生表面张力的原因它有一种叫做内聚力的特性。

Cohesion means the strength of intermolecular forces that hold the material together.

内聚力指把物质结合在一起的子间作力强度。

The higher cohesion is, the harder it is to break the sand up, the bigger the clumps are.

内聚力越强，沙子也就越散，沙子的块头就越大。

We wanted to give you something that reflects our love for you...

为了反映我们家庭的内聚力。

This attraction of water molecules to other water molecules, that's called cohesion.

水子间相互吸引的这种特性，称为内聚力。

These attractive, also called cohesive, forces pull the surface molecules inward.

这些吸引力，也称为内聚力，将表面子向内拉。

Now, the attraction or " cohesion" between the molecules in liquids give them some important properties.

现在，液体子之间的吸引力或“内聚力”赋予了它们一些重要的特性。

Oddly enough, larger particles are  actually easier for the wind to get moving as they experience less cohesion.

奇怪的是，较大的颗粒实际上更容易风移动，因为它们的内聚力较小。

The water molecules stick to the cat’s tongue thanks to adhesive forces, and stick to each other because of cohesive forces.

由于粘附力，水子粘在猫的舌头上，并由于内聚力相互粘在一起。

A third effect of cohesion can be observed by placing one end of a very narrow tube, called a " capillary tube" in a liquid.

通过将称为“毛细管”的非常窄的管的一端置于液体中，可以观察到内聚力的第三种效果。

And what you see when you look at this pile of water is the result of those cohesive forces, minimized surface area in the water in this beaker.

当你看着这堆水时，你看到的是这些内聚力的结果，这个烧杯中的水表面积最小。

But because they're  ultimately too heavy for the wind to suspend, they crash down again, and the force of these  tiny impacts imparts enough momentum to overcome cohesion and get the lighter dust airborne.

但由于它们最终太重， 风无法悬浮，它们会再次坠落， 这些微小撞击的力量提供了足够的动量来克服内聚力， 使较轻的灰尘飞扬到空中。