BrainStuff

There used to be safety concerns about some compounds used to flavor popcorn (diacetyl) and to grease-proof microwaveable bags (PFCs). They're mostly not used anymore, but making your own popcorn might still be safer. Learn more in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/wellness/food-nutrition/facts/popcorn-lung.htmSee omnystudio.com/listener for privacy information.

Sharks can be hatched from eggs, born live, or hatched in the womb and then born live -- if their siblings don't eat them first. Learn about shark reproduction and birth in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/fish/sharks/shark-pup.htmSee omnystudio.com/listener for privacy information.

When we mean that someone has not quite succeeded, what do cigars have to do with it? Learn the carnival roots of this idiom in today's episode of BrainStuff, based on this article: https://people.howstuffworks.com/close-but-no-cigar.htmSee omnystudio.com/listener for privacy information.

Libraries are bastions of knowledge -- but are they also bastions of germs? Short answer: Nope! For the long answer, tune in to this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com/wellness/used-books-may-be-germy-but-wont-make-you-sick.htmSee omnystudio.com/listener for privacy information.

You've seen the trope: a character strains their psychic powers and gets a nosebleed to show for it. But would this actually happen if psychic powers were real? Learn the hypothetical science in this classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/psychic-nosebleed-powers-really-happen.htmSee omnystudio.com/listener for privacy information.

Ravens and crows are both large black birds with mythic reputations, but they're easy to tell apart once you know the differences between them. Learn more in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/birds/american-crows-and-ravens-whats-difference.htmSee omnystudio.com/listener for privacy information.

British royals and lots of the world's other prominent families hire their nannies out of one century-old school: Norland College. Learn how it works in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/european-history/norland-college-royal-nannies.htmSee omnystudio.com/listener for privacy information.

Although it's much more common in women, men get breast cancer, too -- it's not abnormal because we're all mammals, and we all have some amount of breast tissue. Learn about the symptoms and treatments in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/diseases-conditions/cancer/breast/men-breast-cancer.htmSee omnystudio.com/listener for privacy information.

The Gadsden flag -- with its coiled rattlesnake on a bright yellow field and the words 'don't tread on me' -- has symbolic roots stretching back before the American Revolution. Learn its history in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/revolutionary-war/dont-tread-on-me-flag.htmSee omnystudio.com/listener for privacy information.

Rhodium's rarity, industrial usefulness, and straight-up shininess make it one of the most expensive metals on Earth. Learn how it was discovered and more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/rhodium.htmSee omnystudio.com/listener for privacy information.