What is radiation?

You might have heard the word “radiation” in science class or even in superhero movies. It’s something that we’re often warned about, since too much of some kinds of radiation can be bad for our health. But what is radiation? We asked physics graduate student Nicolas Dronchi to help us find the answer. Got a question radiating from your brain? Send it to us at BrainsOn.org/contact, and we’ll get up and ATOM to find the answer! See omnystudio.com/listener for privacy information.