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Maths

What is a fractal?

Episode 827 10:11

In this episode

Have you ever wondered how long the coast of Britain is? Well, the answer depends entirely on the size of your ruler! If you use a giant ruler, you'll get one number. But if you use a tiny ruler, you have to measure every single zig-zag, cove, and rock, making the coast seem magically longer! This wild, mind-bending trick of nature is all about something called a fractal. Join Mira and Finn as they zoom into the infinite, never-ending world of fractals! We'll solve the mystery of why Spain and Portugal got completely different numbers when they measured the exact same border. You'll also learn how a brilliant mathematician named Helge von Koch drew a special snowflake whose edge goes on forever, but still fits perfectly inside a simple circle! Fractals aren't just crazy puzzles—they are hiding all around us in the real world. From zooming in on pointy Romanesco broccoli and branching ferns, to cracking lightning bolts and the magical computer-animated trees in your favorite movies! The closer you look, the more detail appears. Get ready to never look at nature the same way again!

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