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, ...

Who doesn’t love a good math holiday? Most people know about Pi Day (3/14), but there are even rarer days on the calendar ...

The Fibonacci sequence -- in which each successive number is the sum of its two preceding numbers -- regularly crops up in nature. It describes the number of petals around daisies, how the density of ...

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 ...

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 ...

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 ...