Stuff You Should Know

Selects: Birthmarks: Probably Not the Mark of the Devil

It’s a pretty safe assumption that people have been born with birthmarks since humanity began, and between then and now we’ve come up with some wacky, even dangerous, explanations for them – even a few that survive still today. Learn all about them in this classic episode.See omnystudio.com/listener for privacy information.

The Stuff You Should Know Doin’ Science Playlist: How Chaos Theory Changed the Universe

Since the age of Descartes, science has put all of its eggs in the basket of determinism, the idea that with accurate enough measurements any aspect of the universe could be predicted. But the universe, it turns out, is not so tidy.See omnystudio.com/listener for privacy information.

The Stuff You Should Know Doin’ Science Playlist: How Global Warming Works

It's a confusing part of climate change when it seems winter is as cold as ever, but as global temperatures creep ever so slightly higher, a cascade of catastrophic events will almost surely follow. The ball is in humanity's court.See omnystudio.com/listener for privacy information.

The Stuff You Should Know Doin’ Science Playlist: How X-Rays Work

Like many huge discoveries, X-rays were accidentally stumbled upon. That serendipity led to a medical breakthrough still in use today. Learn about how X-rays are created and why they make such delightful images of our bones.See omnystudio.com/listener for privacy information.

The Stuff You Should Know Doin’ Science Playlist: Elastics: Where God and Science Smooch

You could be forgiven for thinking the story behind elastics was boring. You’d still be wrong, though. The story of what’s holding up your underwear is a global drama, replete with war, industrial espionage, colonialism, destitute inventors – everything!See omnystudio.com/listener for privacy information.