In fact, only three factors can be used to define a black hole: its mass, its angular momentum and its electric charge. In reality, that charge will be neutral or very close to it, so in practical ...

Alex Foster, the author of the latest read for the New Scientist Book Club, Circular Motion, on imagining a world that is ...

In this passage from the opening of Circular Motion, the latest read for the New Scientist Book Club, our protagonist boards ...

What if one mathematical nuance has been quietly restraining the efficiency of wind turbines since the turn of last century?