How Do Birds Fly?🦅

Morning birdies!

Have you ever looked up into the sky at a bird flapping about and thought…

They make it look so easy, gliding about up there like a feathered ballet dancer.

But, I can assure you, it is not easy.

Its actually requires a LOT of physics.

Take this bird for example:

First, let's start out by saying, birds weigh almost nothing.

Bird bones are actually super hollow:

Meaning they don’t really need a lot of force to keep them in the air.

Now this wont make a lot of sense initially but just work with me here…

So, you know how rivers move super slow at the wide parts?

And SUPER fast at narrow parts?

Cause there's the same amount of water in less space so it gets forced through at a quicker rate…

The EXACT same thing happens with bird wings.

See that it's big up front and then it tapers off towards the back?

Kinda like an airplane wing?

Well this means the air that flows over the top of the wing gets squeezed and narrowed so it speeds up.

And air at the bottom of the wind slows down.

The fast air that flows over the top of the wing has barely any time to push downwards.

(Cause its going so fast)

But the slow air under the wing has MUCH more time to push upwards.

(Cause its going so slow)

And because the air on top is pushing less than the air on the bottom…

Our birdie friend gets pushed… upwards!

Then all they need to do is flap…

Use their tails like rudders to steer… and fly!!!

Stay Cute,
Reece, Henry & Dylan 🌈

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