Sean Moldowan

Mathematical Beauty: The Fibonacci Sequence in Nature

Abstract: In this presentation, I will discuss the Fibonacci sequence in nature. I will begin my talk by explaining what the Fibonacci sequence is, and its relation to the golden ratio. I will also discuss the various mathematicians who discovered this sequence and how it relates to mathematics more broadly.  I will then give some examples of the Fibonacci sequence's emergence in nature, particularly including in trees, flowers, and fruits (with a special example I will show the class). I will also discuss how the ratio of two consecutive numbers in the Fibonacci sequence approaches the golden ratio, and why this ratio often presents the most efficient pattern for the development of plants and animals. I will demonstrate how mathematicians such as Kepler, Bonnet, and Vogel expressed formulas for the patterns observed in flowers, and the underlying mathematical reasoning for the emergence of these patterns.