Leonardo da Vinci was, by any metric, a genius – but he was still limited by his time. The man may have been a secret authority on anatomy, music, art, engineering, and even frickin’ paleogeography, ...

Earlier this month, two aviation companies you probably don't know much about (yet) brought back to light a flying machine design from so long ago that we've almost forgotten all about it: the ...

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, ...