Why Do Flight Paths Look Curved on a Flat Map?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do flight paths look curved on a flat map?

The Big Idea

Earth is round like a ball. The shortest path is a great circle. On a flat map that path looks bent!

Round Earth

Step one: Earth is round. Our planet is a sphere, so the shortest path between far-away places is a curve called a great circle. Planes follow these routes to save time.

Flat Maps

Step two: maps flatten the globe. The map stretches some parts, so the path looks curved. The map stretches some parts, so the line curves.

String Test

Step three: try a string test. Stretch a string tight between two cities on a globe to see the shortest path. Flights from Canada to Europe often curve far north.

A Closer Look

Let's take a closer look! Earth is a sphere. The shortest path is a great circle. A flat map stretches that path. So the line looks curved.

Quick Facts

Quick facts! Earth is a round globe, not a flat sheet. A tight string on a globe shows the shortest path. When that path is drawn on a flat map, it looks curved. Planes follow great-circle routes to save time and fuel.

Think Like a Scientist

Now, think like a scientist! Ask a grown-up for a globe and a piece of string. Stretch the string tight between Toronto and Tokyo. Look at where the path goes. Then check the same cities on a flat map. Share what you notice with a grown-up.

Outro

Flight paths look curved on flat maps because Earth is round, and the shortest route is a great circle that bends when the globe is flattened into a map. Science is amazing! What will you discover next? Every question is a new adventure, so keep wondering and keep exploring with me! Ask a grown-up to help you try the string-and-globe mission, and see what you find. Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!