令人困惑的气球行为 - Smarter Every Day 113：英语精读讲义

Hey, it's me Destin.

嘿，我是 Destin。

Welcome back to Smarter Every Day.

欢迎回到 Smarter Every Day。

So today we're in the rocket van and I've got two little science helpers here,

今天我们在火箭厢型车里，我这里有两个科学小助手，

right?

对吧？

Yes.

是的。

Are you wearing your seat belts?

你们系好安全带了吗？

Yes, sir.

是的，长官。

Okay,

好的，

we're going to do something pretty interesting.

我们要做一件非常有趣的事情。

Check this out. 短語動詞

看好了。

I've got a pendulum suspended from the top of our family van 語法

我在我们家的厢型车车顶挂了一个钟摆，

and we're just going to drive forward.

我们现在要向前开。

We're going to accelerate.

我们要加速。

So, if we're going that way,

所以，如果我们往那边开，

which direction do you think this pendulum should go? 語法

你们觉得这个钟摆会往哪个方向动？

What do you think?

你们觉得呢？

3

3

2

2

1

1

go.

走。

Left.

左边。

Which way is it going?

往哪边动了？

That way.

那边。

That's right.

没错。

It's because I'm accelerating,

这是因为我在加速，

right?

对吧？

Does that make sense to you guys? 語氣意圖

你们明白这个道理吗？

Yes, sir.

明白，长官。

Okay, very good.

好的，非常好。

I was hoping it would make sense. 語氣意圖

我就希望你们能明白。

So, we're going to change it up just a little bit. 短語動詞

那么，我们要稍微改变一下。

Okay,

好的，

so now what I'm going to do is 表達脈絡

现在我要做的是，

I'm going to replace this pendulum with a balloon. 短語搭配

我要把这个钟摆换成一个气球。

And we should see the same thing, right?

我们应该会看到同样的现象，对吧？

Let me cut this off. 短語動詞

我把这个剪掉。

So, what we're going to do is

所以，我们要做的就是，

we're going to accelerate that way.

我们要朝那边加速。

So, we have the mass of the balloon and the acceleration.

我们有气球的质量和加速度。

So, that should net in a force and we'll have to react with this string, right?

这就会产生一个合力，而我们得用这根线提供反作用力，对吧？

You guys ready?

你们准备好了吗？

Yes, sir.

准备好了，长官。

3

3

2

2

1

1

go.

走。

No.

不对。

Wait a second.

等一下。

What just happened?

刚才怎么了？

Hold on, 語氣意圖

等等，

what happens when I stop?

我停下来时会发生什么？

The balloon goes backwards when I stop.

我停下时气球往后退了。

What's happening?

这是怎么回事？

It's going the same.

它往同一个方向动。

3

3

2

2

1

1

go.

走。

There it is.

出现了。

It's coming right at me. 短語搭配

它直冲我飞过来了。

Why is it doing that?

它为什么会这样？

Do you want to know?

你们想知道吗？

Yeah.

想。

Yeah.

想。

All right,

好的，

I brought something to show you.

我带了样东西给你们看。

Remember I told you?

记得我告诉过你们吗？

I was going to bring this jar earlier? 語法

我之前说要带这个罐子来？

Remember that?

记得吗？

So, it's like this.

所以，就像这样。

Imagine this entire van is just like this jar. 表達脈絡

想象一下整辆车就像这个罐子。

And all the air inside this van

而车里的所有空气

is just like the water in the jar.

就像罐子里的水。

Does that make sense?

明白吗？

So, let's imagine that the balloon is this bubble on top

所以，让我们把气球想象成上面的这个气泡，

because the helium in the balloon is lighter than air, right?

因为气球里的氦气比空气轻，对吧？

So, that causes it to do what? 語法

所以那会让它怎么做？

Go up.

往上走。

Go up.

往上走。

That's right.

没错。

So, if I've got this air that's just like it,

如果我这里的空气跟它一样，

what happens if I move the jar that way?

那如果我把罐子往那边移动会怎样？

It did.

动了。

All that water sloshes to the back.

所有的水都晃到了后面。

And when that water sloshes back this way,

当水往后晃的时候，

which direction does the bubble go?

气泡往哪个方向跑了？

You see that?

看到了吗？

So, the air bubble moves in the direction of acceleration. 短語搭配

所以，气泡会朝着加速的方向移动。

Does that make sense?

懂了吗？

I know you're five,

我知道你才五岁，

but I think you can get this. 用詞

但我觉得你能懂这个。

Okay, so I've got my seat belt on.

好了，我系好安全带了。

If I drive forward real fast right now, 用詞

如果我现在很快地向前开，

which direction is the balloon going to go?

气球会往哪个方向动？

Forward.

前面。

Why will it go forward?

为什么它会往前？

Because um all the air is sloshing back. 習語

因为……所有的空气都晃到后面去了。

That's right.

没错。

Very good.

非常好。

Watch this.

看着。

Look at that.

看看。

You see that?

看到了吗？

So, you know what that means, 語法

那你知道这意味着什么，

don't you?

对不对？

Yeah.

嗯。

That means you have more air to breathe than Daddy does 語法

这意味着你有比爸爸更多的空气可以呼吸，

when I'm going fast.

当我开得很快的时候。

Did you realize that?

你意识到这点了吗？

No.

没有。

Yeah,

是的，

then what that means when I go fast

这意味着当我开得快时，

that means more air sloshes back there to you

更多的空气会晃到你那儿，

and you have more oxygen to breathe.

你就有更多的氧气可以呼吸。

Doesn't it feel good back there? 語氣意圖

在后面感觉是不是很好？

Okay,

好了，

so now we have the plumb bob right next to the balloon. 文化背景

现在我们把铅锤放在气球旁边。

So, if I go forward,

那么，如果我向前开，

they should spread apart, right?

它们应该会分开，对吧？

Let's check it out.

让我们来看看。

Is it working?

成功了吗？

Is it working?

成功了吗？

Yeah.

嗯。

All right.

好的。

So,

那么，

what I want to do is

我想做的是，

I want to tell everybody on Smarter Every Day that if they go download a free audiobook

我想告诉 Smarter Every Day 上的每个人，如果他们去下载一本免费的有声读物，

that it'll help Smarter Every Day by sponsoring us.

那就是在赞助我们，帮助 Smarter Every Day。

Audible will.

Audible 会赞助。

They go to audible.com/smarter.

他们去 audible.com/smarter。

And so,

这样，

they get a free audiobook.

他们就能得到一本免费有声书。

But I'm going to do it in a funny way.

但我要用一种有趣的方式来说。

Lean in towards me 短語動詞

往我这边靠，

and look straight at the camera.

眼睛直视镜头。

I know you don't know what I'm going to do,

我知道你不知道我要做什么，

but don't laugh

但千万别笑，

because I want people to realize that they can send you to school

因为我想让大家知道，他们可以送你们去上学，

if they get an audiobook.

只要他们领取有声书。

Does that make sense?

懂了吗？

Yeah.

嗯。

So, whatever happens, 語法

所以，不管发生什么，

don't laugh.

别笑。

Okay?

好吗？

Look straight at the camera.

直视镜头。

Ready?

准备好了吗？

You don't know what I'm doing,

你不知道我要做什么，

do you?

对吧？

Okay,

好了，

you ready?

准备好了吗？

Thank you for supporting Smarter Every Day. 短語搭配

感谢您支持 Smarter Every Day。

If you would please download an audiobook at audible.com/smarter. 語氣意圖

如果可以的话，请在 audible.com/smarter 下载有声书。

Did you know Dad could talk like this?

你们知道爸爸能这样说话吗？

No.

不知道。

You didn't know that happened,

你们不知道会发生这种事，

did you?

对不对？

So,

所以，

if you go get a free audiobook, 語法

如果你们去领一本免费的有声书，

it'll support Smarter Every Day

就能支持 Smarter Every Day，

and it'll help me send these kids to school. 語法

还能帮我送这些孩子去上学。

Does that sound like a good idea? 語氣意圖

听起来是个好主意吗？

Yeah.

嗯。

You should never do that,

你们绝对不能这么做。

by the way. 表達脈絡

顺便说一句。

That's only for adults.

这是大人才能做的。

How did you do that?

你是怎么做到的？

It's magical.

这是魔法。

Anyway, 表達脈絡

好了，

I'm Destin.

我是 Destin。

You're getting smarter every day.

你们每天都在变得更聪明。

Please subscribe to Smarter Every Day and support our sponsor,

请订阅 Smarter Every Day，并支持我们的赞助商，

Audible.

Audible。

I'll leave a link somewhere

我会在某处留个链接，

and you can check it out.

你们可以去看看。

Thanks.

谢谢。

Bye.

拜拜。

How did you change your voice?

你是怎么改变声音的？

Okay,

好的，

now we have the sunroof, 語法

现在我们打开了天窗、

the side window,

侧窗，

and the back open.

和后备箱。

I'm going to go forward.

我要向前开。

Where do you think it's going to go?

你们觉得它会往哪儿动？

Forward.

前面。

Forward?

前面？

Backwards.

后面。

Backwards?

后面？

3

3

2

2

1

1

So,

所以，

this is air, not helium.

里面是空气，不是氦气。

Yes, sir.

是的，长官。

Okay,

好的，

I think it's going to act like the pendulum. 用詞

我觉得它会像钟摆一样。

3

3

2

2

1

1

go.

走。

Backwards.

向后。

Oh, it does. 語法

哦，确实是。

We're going to use that one.

我们就用那个。