Physics at its best brings the world together. Its power is that a single simple framework can describe wildly different systems. But even the greatest descriptive equations reach their limits ...

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 ...

Want to understand all the references in a Big Bang Theory episode, the discovery on this day in 1926 is the secret to it all. What do endless episodes of The Big Bang Theory, Doctor Who, Futurama, ...