Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

How did the complexity of the Delian problem, an ancient Greek mathematical riddle that baffled brilliant minds, reshape our understanding?

It’s called mental inversion, and here’s how it works. Thinking forward is an automatic process. Cause, then effect. Input, then output. A to B. It feels logical—and normal to start with a conclusion, ...

The amplituhedron, a shape at the heart of particle physics, appears to be deeply connected to the mathematics of paper folding.