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Book 23, Question 61 · Video

Why Do Airplane Windows Have Round Corners and a Tiny Hole?

Video · 1:53 · Crafty Clover explains, from A Million Whys Book 23

Airplane windows have round corners. They also have a tiny hole. Both are clever safety ideas! Airplane windows have several layers of plastic for strength.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do airplane windows have round corners and a tiny hole?

The Big Idea

Airplane windows have round corners. They also have a tiny hole. Both are clever safety ideas!

Pressure Pushes Out

Step one: pressure pushes out. In flight, the cabin is pressurized, so air pushes outward on the windows. Sharp corners collect stress and can crack.

Round Corners

Step two: round corners. Round corners spread the stress out. Early jets with square windows developed cracks, so designers switched to rounded ones.

A Tiny Hole

Step three: a tiny hole. The tiny hole in the window is a breather hole. It makes sure the outer pane takes most of the pressure.

A Closer Look

Let's take a closer look! Windows have several layers of plastic. The corners are round. The tiny hole shares the pressure. The window stays strong.

Quick Facts

Quick facts! Airplane windows have several layers of plastic for strength. Round corners spread stress evenly. The breather hole helps the outer pane. Early square windows cracked.

Think Like a Scientist

Now, think like a scientist! Draw a window with square corners and one with round corners. Mark where you think stress would gather. Which shape would be safer? Show a friend your drawing. Write down what you notice, and share it with a grown-up.

Outro

Airplane windows have round corners to spread out stress, and a tiny breather hole to help the outer pane. Science is amazing! Keep asking questions! The more you look around, the more wonders you will find, so keep your eyes open! Thank you for exploring with me, and remember that every great scientist started with a question. Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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