20,000帧/秒下的鸟类起飞（213毫秒）- Smarter Every Day 197：英语精读讲义

Hey, it's me Destin.

嘿，我是 Destin。

Sorry for the vertical video there.

抱歉视频是竖屏的。

I was recording for the Instagram story.

我当时在录 Instagram 快拍。

So,

所以，

I caught this bird with my hand

我用手抓住了这只鸟

and I got to thinking about it. 短語搭配

然后我就开始琢磨了。

It's kind of a shame to have a bird and let it go 講解

抓住一只鸟然后直接放走，

and not film it in slow motion.

不拍个慢动作，感觉有点可惜。

So, that's what we're going to do. 語法

所以，我们就来拍一下吧。

All right,

好了，

this is my daughter's butterfly thing.

这是我女儿装蝴蝶的笼子。

Where are you at,

你在哪儿啊，

little bird?

小鸟？

Hey.

嘿。

Calm down, buddy.

冷静点，伙计。

Calm down.

冷静点。

Calm down.

冷静点。

There you go. 語氣意圖

这就对了。

Calm down.

冷静点。

Okay.

好了。

Let's hold you where you don't get hurt.

我要把你握好，这样你就不会受伤了。

There you go.

这就对了。

All right.

好了。

Let's go let you go.

我们这就放你走。

What do you think?

你觉得呢？

So, I have always been fascinated by birds.

我一直对鸟类很着迷。

Their wings in particular, 短語搭配

特别是它们的翅膀，

you see their primary feathers, 用詞

你看它们的初级飞羽，

1 2 3 4 5 6 7 8 9.

1 2 3 4 5 6 7 8 9。

I thought they had 10 primary feathers.

我原以为它们有 10 根初级飞羽。

Maybe they do.

也许确实有吧。

And then these are the secondary feathers.

然后这些是次级飞羽。

And then the feathers around his eyes.

还有它眼睛周围的羽毛。

It's really cool.

真的很酷。

He's scared.

它很害怕。

So, we're going to try to

所以，我们要试着

we're going to try to get him out of here real quick. 用詞

我们要试着赶紧把它放出去。

He'll want to fly away.

它会想飞走的。

I know this isn't like a super in-depth Smarter Every Day video,

我知道这不是一期非常硬核的 Smarter Every Day 视频，

but this is just a target of opportunity, 習語

但这只是个碰巧的机会，

something to learn really quick.

能快速学到点东西。

What I want to know is when he takes off 短語動詞

我想知道的是，当它起飞时，

if his tail feathers are correcting immediately

它的尾羽是否会立即进行修正，

or if it has to wait until he's moving in flight before he starts using those.

还是说它必须等到在飞行中移动时，才会开始使用尾羽。

We probably won't see that

我们可能看不出来，

because we literally have one shot to do this. 習語

因为我们实际上只有一次机会。

But uh I'm really excited.

但是呃，我真的很兴奋。

Did you see his eyes?

你看到它的眼睛了吗？

Like the little feathery things around his eyes?

像它眼睛周围那些毛茸茸的小东西？

I've never noticed that.

我以前从没注意到过。

Anyway, he's getting tired.

总之，它累了。

We got to let him go. 語法

我们得放它走了。

All right,

好了，

here we go. 語氣意圖

准备好了。

Releasing the bird.

放鸟。

3 2 1.

3 2 1。

That was fast.

好快。

All right, let's look at it.

好了，我们来看看。

I mean, we probably just got the launch,

我想，我们可能只拍到了起飞，

but I like birds.

但我喜欢鸟。

All right,

好了，

I set out to make a cute little video of a bird hopping out of my hand, 短語動詞

我本打算拍一段可爱的小鸟从我手里跳出去的视频，

but I actually learned a ton from this footage. 習語

但我实际上从这段镜头里学到了很多。

Number one,

第一，

it's clear that the bird hops out of my hand,

很明显，鸟是从我手里跳出去的，

and I've never thought about that.

我以前从没想过这一点。

I'm sure that's just common knowledge to ornithologists 短語搭配

我相信这对鸟类学家来说只是常识，

but for some reason I always thought birds just start flapping to fly. 短語搭配

但不知为何，我一直以为鸟只是开始拍打翅膀就能飞。

And he's hopping.

而它是在跳跃。

Why would they not use their legs to get further away from the ground

它们为什么不用腿让自己离地面更远一点，

so their wings don't hit the ground or my hand or whatever?

这样它们的翅膀就不会碰到地面、我的手或者其他东西呢？

That's just cool.

这太酷了。

I've never thought about that.

我以前从未想过。

Number two,

第二，

I think it's neat that he points his tail towards the ground on that hop.

我觉得很有趣的是，在它跳跃时，它把尾巴指向了地面。

And I've got to believe he's doing that to reduce the vertical component of drag 講解

我相信它这样做是为了减少垂直方向的阻力，

so that he can hop farther. 語法

这样它就能跳得更远。

Another thing that happens is on the downstroke, 用詞

另一件事是，在翅膀向下拍打时，

you can see that his feathers are together,

你可以看到它的羽毛是合拢的，

but his feathers delaminate to reduce drag on the backstroke. 用詞

但在向上挥动时，它的羽毛会分开以减少阻力。

We've seen that in a Smarter Every Day episode in the past.

我们在过去的一期 Smarter Every Day 节目中看到过这个。

It's fun to see it again here.

在这里再次看到真的很有趣。

Number four,

第四，

it's cool to see him transition that tail from being pointed down.

看到它把尾巴从朝下转变为抬起，真的很酷。

He raises it,

它把尾巴抬起来了，

so he's getting ready for horizontal flight.

所以它在为水平飞行做准备。

So, that transition from vertical flight to horizontal flight, 短語搭配

所以，在从垂直飞行过渡到水平飞行的过程中，

he straightens his tail out to get it in the game. 習語

它把尾巴伸直，让尾巴发挥作用。

He's getting ready to make corrections in horizontal flight.

它准备好在水平飞行中进行修正了。

I think it's really cool to make your own observations 短語搭配

我觉得自己做出观察真的很酷，

because all this probably exists in a scientific paper somewhere,

因为所有这些可能早就写在某篇科学论文里了，

but it's fun to actually see it for yourself and try to understand. 短語搭配

但亲眼看到并尝试去理解真的很有趣。

I'm going to be looking for these things

我以后会留意这些事情的，

every time I see a bird take off from now on. 短語搭配

从今以后每次看到鸟起飞我都会注意。

All right,

好了，

that's enough for this bird.

关于这只鸟就说到这里。

Do you want to see my garden?

你们想看我的花园吗？

These are my sunflowers.

这些是我的向日葵。

I grow them for all the ladies in my life.

我是为我生命中所有的女士种的。

My daughter,

我女儿，

my mom,

我妈妈，

my wife.

我妻子。

While we're here, 表達脈絡

既然我们在这儿，

do you want to see my cornses? 用詞

你们想看我的玉米吗？

My cornses are bad.

我的玉米长得不好。

I think I overwatered them.

我觉得我水浇多了。

These are my cornses.

这是我的玉米。

These are my cornses

这是我的玉米

and uh my

还有呃，我的

You can't look at this

你不能看这个

You can't look at this one.

你不能看这个。

Hold on.

等一下。

Right here.

就在这里。

Look at this bad boy. 用詞

看看这个大家伙。

Look at it.

看看它。

Ain't that beautiful? 用詞

是不是很漂亮？

It's a good-looking melon right there.

这瓜长得真不错。

Anyway,

总之，

it's a simple video.

这是一个简单的视频。

I hope you enjoyed it.

希望你们喜欢。

I'm Destin.

我是 Destin。

We're getting smarter every day.

我们在每天变得更聪明（Smarter Every Day）。

Have a good one. 語氣意圖

祝你们开心。

Bye.

拜拜。