In this video series, I show how we determine the difference between a relation and a function. A function is a relation ...

Learn the difference between lines with the same slope and those with an opposite reciprocal slope. This quick guide breaks ...

When it comes to losing weight, it turns out the simple math of counting calories doesn’t always add up. Fad diets come and ...

When it comes to losing weight, it turns out the simple math of counting calories doesn’t always add up. Fad diets come and go, but the underlying message almost always follows a simple equation: If ...

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, ...

Physicists have debated which way a submerged sprinkler sucking in water would spin. Careful experiments provide an answer.

Twenty thousand dollars a month in dividends means $240,000 a year that has to arrive whether the market cooperates or not. Reaching it is a math problem before it is a stock-picking problem, and the ...

The Crisis at the Motor Pool In November 2011, I was a chief warrant officer 3 and took over as the battalion maintenance ...

Low- and middle-income countries account for roughly 1.2 billion children and young people, many of whom are at risk of being ...

Chef José Andrés is challenging one of the biggest assumptions about hunger. He argues that feeding the world requires more ...

AI is powerful. But it will not solve bad data or broken processes. In fact, it can magnify errors with great confidence.

He received a 1992 Nobel Prize for developing a theory that explained fundamental processes behind photosynthesis, ...