Ever wonder how tornadoes really form? In this video, expert meteorologist doesn't just explain how tornadoes form—they simulate the entire process so you can actually watch it unfold. Because some ...

What are tornadoes, how do they form? Here's what to know Learn how tornadoes form, why supercells are most destructive, and what tornado watches and warnings mean.

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, ...