19 Common Things Science Hasn’t Figured Out

YouTube
YouTube

Whether we want to admit it or not, everyone cries. And while experience has taught us that it's a seemingly natural reaction to being either incredibly sad or incredibly happy, scientists have yet to figure out exactly why that salty discharge pours from our eye sockets when we're feeling emotional. It could be a way to bond with our fellow humans, or a way to alert someone else that something is amiss. But these are all just guesses, as weeping is just one of many everyday behaviors the world's smartest brains still haven't quite cracked the code on yet.

Join editor-in-chief Erin McCarthy as she digs into the science—or lack thereof—of 19 seemingly normal things we do that are a mystery to scientists (you can add sleeping, laughing, and hiccuping to that list, too) with the first edition of our all-new Mental Floss List Show. There's a fancy new set, a fancy new host, and plenty of mind-boggling topics we'll be discussing. So put on your smartypants and check out the full episode below.

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Friday’s Best Amazon Deals Include Digital Projectors, Ugly Christmas Sweaters, and Speakers

Amazon
Amazon
As a recurring feature, our team combs the web and shares some amazing Amazon deals we’ve turned up. Here’s what caught our eye today, December 4. Mental Floss has affiliate relationships with certain retailers, including Amazon, and may receive a small percentage of any sale. But we only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Good luck deal hunting!

The Meanings Behind 25 Common Acronyms and Initialisms

Remember POGs?
Remember POGs?
Rick Beauregard, Shutterstock

Before POGs became collectible items printed with our favorite ’90s pop culture characters, they were just simple discs found inside bottle caps. In fact, that’s how they got their name—POG is an acronym for Passion Fruit, Orange, Guava, the name of a Maui-based beverage whose lids gave rise to the game.

On this episode of The List Show, Mental Floss host Justin Dodd is sharing the origin stories behind 25 popular acronyms and initialisms, many of which you may not have realized actually stood for anything at all. Geico, for example, isn’t a word that insurance providers made up to match their spokes-gecko; it’s an acronym for Government Employees Insurance Co., made up to match the company’s original target demographic (government employees). And since LED stands for light-emitting diode, the phrase LED light is rather redundant.

Press play below to uncover the secrets behind other popular abbreviations, from Alien Life Form (ALF) to Yet Another Hierarchical Officious Oracle (Yahoo!).

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