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 ...

Maxwell’s equations of electromagnetism and the Euler equation top a poll to find the greatest equations of all time. Robert P Crease discusses the results of his reader survey First among equals – ...

The currents of the oceans, the roiling surface of the sun, and the clouds of smoke billowing off a forest fire—all are governed by the same laws of physics and give rise to a complex phenomenon known ...