Surface tension happens because water molecules are more attracted to each other than the air around them.

表面张力出现的原因是因为水分子彼此之间的吸引力比它们周围的空气对它们的吸引力更大。

Like surface tension which turns water into a potentially deadly substance for insects.

如表面张力，把水变成对昆虫致命的潜在陷阱。

And that's because surface tension takes over.

这是因为表面张力出现了。

The chemical properties of soap lower the surface tension of water, so anything relying on surface tension to stay afloat will sink.

肥皂的化学性质降低了水的表面张力，因此任何依靠表面张力保持漂浮的东西都会下沉。

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。

How does your brain feel about calculating the surface tension of the domain walls?

那你的大脑对于计算畴壁的表面张力怎么看？

They're too dense to be buoyant, they float because of surface tension.

它们密度太大以至于无法浮起来，它们漂浮是因为表面张力。

Surfactants' ability to break surface tension makes them useful to humans as a wetting agent.

表面活性剂打破表面张力的能力使它们作为湿润剂来说对人类是非常有用的。

But buoyant objects don't rely on surface tension, so they continue surfing the meniscus.

但是有浮力的物体不依赖于表面张力，所以它们会继续在弯月面浮动。

A buoyant object will always repel something held up by surface tension's stretchy membrane.

一个有浮力的物体总是会排斥由表面张力弹性膜支撑的东西。

Water can't enter it because their hairs are too tiny to break its surface tension.

水无法进入，因为它们的毛发太细密了， 无法打破水的表面张力。

Remember how I said spherical, blobby shapes minimize surface area thanks to surface tension?

还记得我说过球状的水滴形状由于表面张力而使表面积最小吗？

It would quickly engulf you, its surface tension too hard for you to break and you'd drown.

它会很快把你吞进去，由于表面张力太难打破，你会被淹死。

This defense mechanism relies on another property of surfactants — their ability to break the surface tension of water.

这种防御机制依赖于表面活性剂的另一种特性——打破水表面张力的能力。

Instead, they gather into thick blobs of liquid around their eyes because the water surface tension holds tears together.

相反，眼泪在眼睛周围凝结成浓稠的液体团，因为水的表面张力把眼泪聚集在了一起。

And so the insect carries its own outside lung around and can basically breathe underwater thanks to surface tension.

所以昆虫能到处带著自己的外肺。并基本上能在水下呼吸。一切受惠于表面张力。

Other aquatic insects like water treaders exploit surface tension, just like thumbtacks and paper clips.

其他水生昆虫，如水蟑螂，就像图钉和回形针一样利用表面张力。

Or the Blue Dragon nudibranch, which floats upside down in the water using surface tension and camouflages with the water.

或者是蓝龙裸鳃鲨，它利用水面张力倒挂在水面上，并利用水面伪装自己。

Well, now that you can focus again, what do you say we get back to surface tension of domain walls?

现在你的注意力又能集中了，咱们可以回到畴壁表面张力的研究了吧？

But for an insect the force of water surface tension is so strong that getting wet is a question of life and death.

但对于昆虫，水的表面张力是如此强，让碰水变成一个攸关生死的问题。