If the pen was turned upside down the capillary action and the surface tension of the ink would stop it from falling out the back of the pen.

如果把笔倒过来，毛细作用和墨面张力会阻止墨从笔背面掉出来。

Most are regular pneumocytes called type I pneumocytes, but some, called type II pneumocytes, have the ability to secrete a substance called surfactant, which helps decrease the surface tension within the alveoli and keeps them open.

大部分为I型肺泡细胞，还有一些为II型肺泡细胞可以分泌一种面活性剂，这有助于降低肺泡内面张力，并保持它们开放。

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

这就是产生面张力原因它有一种叫做内力特性。

Those decrease the surface tension of fatty stools, allowing them to absorb water and become soft — like how soaps and detergents let water and oils mix when you're washing your hands.

它们可以降低脂肪型粪便面张力，粪便吸收分变软，跟肥皂和清洁剂你洗手时将和油相混过程类似。

As the drop continues to fall and grow, at some point, it becomes too large for the surface tension to hold it together, so the raindrop breaks apart into smaller spherical drops.

随着雨滴继续下落和增大，某一时刻，它变得太大，面张力无法将其保持一起，因此雨滴分裂成更小球形雨滴。

The team found that the insects pushed off with a downward force that exceeded the surface tension. That's the force that glues the water surface molecules together.

他们发现这种昆虫使用大于面张力下向力来推动自己，这种力能面分子一起。

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

肥皂化学性质降低了面张力，因此任何依靠面张力保持漂浮东西都会下沉。

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，由于面张力太难打破，你会被淹死。

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

相反，眼泪眼睛周围凝结成浓稠液体团，因为面张力把眼泪集了一起。

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，它利用面张力倒挂面上，并利用面伪装自己。

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

现你注意力又能集中了，咱们可以回到畴壁面张力研究了吧？

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，面张力是如此强，碰变成一个攸关生死问题。

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

一个有浮力物体总是会排斥由面张力弹性膜支撑东西。

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

那你大脑对于计算畴壁面张力怎么看？

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

如面张力，把变成对昆虫致命潜陷阱。

Small droplets of water in the atmosphere are spherical in shape due to the surface tension, or " skin, " of the water molecules.

由于分子面张力或“皮”，大气中小滴呈球形。

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

无法进入，因为它们毛发太细密了， 无法打破面张力。

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

面张力出现原因是因为分子彼此之间吸引力比它们周围空气对它们吸引力更大。

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外肺。并基本上能下呼吸。一切受惠于面张力。

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

但是有浮力物体不依赖于面张力，所以它们会继续弯月面浮动。