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用你的嘴造出一朵云 – 译学馆
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用你的嘴造出一朵云

How to Make a Cloud in Your Mouth

[背景音乐]
[MUSIC PLAYING]
这里有10种云朵
There are 10 types of clouds.
轻飘飘的 快速移动的——我开玩笑了
Fluffy, swooshy– I kid.
但是说真的 确实有10种云朵
But really, there are 10 types of clouds.
除此之外 人类已经对它们
And beyond that, people have categorized them
按照各自的品种分类
into subvarieties.
发状云 乳状云 荚状云 幡状云
Capillatus, mammatus, lenticular, fallstreak,
脊状卷云 浓积云 火积云
cirrus vertebratus, cumulus congestus, pyrocumulus,
层状云 高积云
stratiformis, altocumulus.
但是 今天我们要来创造一种全新的云朵
But today we’re going to create an entirely new type of cloud.
我喜欢把它叫做“荒谬麦克云”
I like to call it maculus ridiculous,
因为它会让你看起来很荒唐搞笑
because it makes you look ridiculous when
当你做这种云朵
you make this type of cloud.
注意了
Seriously.
首先 你要做的是
The first thing you have to do is
用你的舌头顶住嘴巴的顶部
to click your tongue on the roof of your mouth,
像这样——注意闭上嘴巴而且里面要充满空气
like this– but with your mouth closed and full of air.
这样30秒后 向你的嘴巴增加压力
After 30 seconds of that, you pressurize your mouth,
就是说你要闭紧嘴巴
meaning you hold your mouth closed
并且尝试吹出 像这样
and try to blow out, like this.
然后张开让云慢慢逃走
Then let go and let the cloud slowly escape.
现在就像鲍勃•瑞斯所说的
Now as Bob Ross would say–
#让我们画一朵快乐的小云朵#
(SINGING) Let’s build a happy little cloud.
接着来
Here goes.
[鼓动口腔的声音]
[CLICKING]
我不是胡编乱造哦
I’m not making this up.
这是真事
This really works.
这里涉及一些简单的物理现象
There’s some simple physics going on here
去实现云朵的产生
to make this cloud work.
它依赖于两个步骤
And it relies on both steps.
你可以择一尝试 但那样就不会成功
You can try it without one, but it’s not gonna work.
第一步 用你的舌头顶口腔
The first step, clicking your tongue,
来创造出少量的小水滴
works to create tiny water droplets
这样在你的嘴里它可以更容易蒸发
in your mouth that can evaporate more easily
创造出温暖潮湿的空气
and create warm, humid air.
第二步 当你对嘴巴增压
The second step, when you pressurize your mouth,
它会进一步使空气升温
it heats up the air even further.
几乎完美的气体定律会友好的
Your friendly neighborhood ideal gas law
告诉你 当气压增加时
tells you that when the pressure goes up,
温度就会上升 暖空气就
the temperature goes up, and that warmer air
可以容纳更多以水气体或水蒸气形式存在的
can hold even more moisture in the form of H2O gas or water
水分
vapor.
毕竟 当你让空气流出
After all this, when you let the air out,
你释放了压力 由此也造成了温度的降低
you release the pressure, which causes the temperature to drop.
从而外面的空气更冷了
That, and the outside air is cooler.
当潮湿的空气冷却 它就不再
When the humid air cools, it can no longer
保留所有的水蒸气
hold all of the water vapor, and some of it
有些会凝结成极小的水滴
condenses out into itty-bitty water droplets.
于是你会得到一朵从嘴巴里翻涌而出的云
And you get a cloud billowing out of your mouth.
下面是以同样的方法去重现
This is the same process that occurs
当你在瓶子里创造一朵云
when you create a cloud in a bottle,
就像Bearded Science Guy所证明的
as Bearded Science Guy is demonstrating here.
这是把水蒸气放在瓶子里 增加气压
It’s the water vapor in the bottle, pressurization,
然后释放 这样就使水液化
and then release that causes H2O to condensed,
形成小水滴 于是你就得到了云朵
water droplets to form, and you get a cloud.
这正是在天上的云朵
That’s exactly what clouds in the sky are.
它们是轻盈的 由小水滴
They are tiny, little water droplets
由于温暖潮湿的空气上升和冷却凝结而成
that condense as warm humid air rises and cools down.
所以云朵是液态水形成的 而不是水蒸气
So clouds are made of liquid water, not water vapor.
所以很多小水滴都被空气
So a bunch of tiny water droplets, all hanging out,
包围着
surrounded by air.
多么特别的凝聚啊
What a special gathering.
这可能就是有云彩鉴赏学会存在
Which is likely why there’s a Cloud Appreciation Society,
去欣赏大自然的摄影集的原因
to appreciate nature’s photo-bomber.
它已经有38000位云彩鉴赏者
And it has 38,000 cloud appreciators.
说真的 我可能找不到一个鉴赏学会
Honestly, I couldn’t find an appreciation society
为了其他任何事而不是人类制造或者一种动物
for anything else that wasn’t man-made or an animal.
当然我也希望你可以来证明我是错的
I hope you all prove me wrong, though.
现在 我知道月球上没有云朵
Now, I know it doesn’t have any clouds,
但是你觉得月球大气鉴别社团怎么样
but what about a Moon Atmosphere Appreciation Society?
大多数人似乎没有意识到月球
Most people don’t even seem to appreciate that the moon has
有大气
an atmosphere.
这张照片是月球亮丽的地平线
This photo of the lunar horizon glow
拍摄于阿波罗登月的时侯
was taken during the Apollo missions.
尽管那里的大气很稀薄
Although the atmosphere there is so thin
一些人认为是球表面边界的外逸层
that some consider a surface boundary exosphere,
就像矮行星的大气
which is like the dwarf planet of atmospheres.
如此稀薄 虽然在地球上
So thin– so thin that while there
每立方厘米有一千亿亿的分子
are 10 million trillion molecules in a cubic centimeter
在空气中 但月球大气层中的分子却远远少于
of air on Earth, there are less than one million molecules
100万立方厘米
in a cubic centimeter of the moon’s atmosphere.
在某种程度上 这将被认为
In a lab, that would be considered
是一个很好的真空环境
a really good vacuum.
这些分子很少会互动或碰撞
Those molecules would rarely ever interact or collide,
这意味着这里几乎没有风没有气压
which would mean no wind, virtually no air pressure,
没有高温 没有云
no heat, no clouds.
如果它们是云朵 在月球大气中
And if their were clouds, they’d be made out
我们将会找到做出云朵的直接元素 就像
of the strange elements we found the moon’s atmosphere, like
氩 钠和钾
argon, sodium, and potassium.
这不是那朵我要在嘴里做出来的云
That’s not a cloud I’d want to make in my mouth.
所以我们还是要地球上的荒谬麦克云好了
So we’ll stick with maculus ridiculous here on Earth.
感谢收看~
Thanks for watching.
[背景音乐]
[MUSIC PLAYING]

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视频概述

用气体定律,自己来创造出一朵来自嘴巴的云朵。

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视频来源

https://www.youtube.com/watch?v=68A_Azsqqg4

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