To understand the spirals in pinecones, pineapples, daisies and lots of other things in nature, we have to meet a mathematician named Leonardo de Pisa. How many spirals go in the clockwise direction (green lines)? How many spirals go in a counter-clockwise direction (yellow lines)? Isn’t that strange? Wouldn’t you expect that they would be the same? Look at the pictures below to see what that looks like. They don’t go around and around in a circle - they go out like fireworks. It’s not just daisies! Nature is all about math. It is made up of sets of spirals that go out from the center. Have you ever pulled the petals off of a daisy? If you look closely at the center of a daisy, you will find that the yellow center is not solid. Lesson 1: Introduction to Fibonacci numbers
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