Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Fibonacci Day is celebrated today, i.e., on November 23, because the date formation of today is 11/23 (1, 1, 2, 3), which represents the Fibonacci sequence. Leonardo Bonacci, today known as Fibonacci, ...

Have you ever heard of the Fibonacci sequence? Or the Golden Ratio? Or the Golden Spiral? These mysterious numbers and shapes are all connected to each other. If you look closely, they can be found in ...

Look closely at a sunflower, and you'll see the distinct spiral in its center. | UrsaHoogle/iStock via Getty Images Many flowers have petals that add up to Fibonacci numbers, including buttercups, ...

From pine cones to spiral galaxies, fascinating patterns of the Fibonacci sequence occur naturally in nature. Find out how this ancient sequence manifests in our world and beyond. Katie Liu is a ...

A variation of a puzzle called the “pick-up sticks problem” asks the following question: If I have some number of sticks with random lengths between 0 and 1, what are the chances that no three of ...