Name: ハミングバードはどのくらいの速さで羽ばたくことができますか？ (How Fast Can a Hummingbird Flap?)
Uploaded: 2021-01-14T09:49:03.000Z
Duration: 7 min 37 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

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where they've got some eagles,  hawks, even hummingbirds.

It means he's very happy right now, so he must like you two.

- Why have you never roused   for me? - Sorry.

- Gav: Look at that.  So weird.   - Dan: Wow.

- Oh, whoa.  - Dan: Oh, he is just not  happy about it.

I mean, it's just the best subject for me to film.

because you never know if a bird's gonna perform.

You can't exactly tell an animal to do something

to do what we want them to exactly when we want them to.

Maybe if we turn around, pretend we're not looking.

It's funny how different birds have different methods of flying.

Like an eagle can just soar and maybe flap once a minute or something if it has to.

But then a hummingbird to stay where it is

needs to flap however many times it is a second.

Yeah, well we filmed both on the Phantom,

so why don't we go over to the screen and compare 'em.

Okay, so I brought up-- it's probably one of our very first shots of the day.

But supposedly the hummingbird beats its wings

the most times in a real time second on this clip.

So, what we'll do, we'll count the wing beats

I like that we have to have that small of a unit of time.

Yeah, I mean, you do. It's slow mo footage.

- 48. - Well, uh, it's sort of   47 and a half

- There we go. - That's right, you're not   getting all the credit.

It doesn't seem that amazing when you're watching it back on slow-mo.

I mean, are you saying that our slow-mo made him less impressive?

- Yeah, exactly. - How many flaps could   you do in one second?

- An entire flap? - What does that look like?

- Yup. - That's two different   worlds right there.

It's kind of unfair because the hummingbird

Also, they completely flap their wings in a different way.

It looks like he's getting lift on his backstroke, too.

Whereas this one, he doesn't have to worry about it.

- He's kind of just   enjoying the glide. - Both of those can fly,

but they've got two completely different ways of doing it.

I think we should learn a little bit more.

All right. Hey, Peter, thanks for coming on.

Hey, thanks for having me. It's great to be here.

Dan: So we're with the hummingbird expert,

So we've just counted 47 and a half wing beats per second.

- I think we should round 'em   up, I think he got 48. - He doesn't deserve it.

- All right, all right. - He didn't work hard enough   for that.

So is that average, or is it usually they get more?

That's right about in the middle of the range.

So normally, between about 40 and 60 beats--

One other thing I noticed is that it seemed like

they were getting lift on their forward flap

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ハミングバードはどのくらいの速さで羽ばたくことができますか？ (How Fast Can a Hummingbird Flap?)

sort

ridiculous

pretend

metabolism