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, ...

On Friday, March 20, as the U.S. stock market closed out its worst week since 2008 amid coronavirus-related turmoil (before recovering somewhat early the following week), investors were left with a ...

Shea Gunther is a writer, entrepreneur, and podcaster living in Portland, Maine. He covers topics such as renewable energy, climate change, and nature. One of the things that drove me to enroll back ...

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, ...

Learn about the origins of the Fibonacci sequence, its relationship with the golden ratio and common misconceptions about its significance in nature and architecture. When you purchase through links ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

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 ...

After dividing 1 by 999-quattuordecillion (a number that’s 48 integers long), you get the Fibonacci sequence presented in neat, 24-digit strings. Here’s why that happens. As a quick refresher, the ...

Don’t ask us why, but hackers and makers just love building clocks. Especially in the latter case, many like to specialize in builds that don’t even look like traditional timepieces, and are difficult ...