Mental Floss
Mental Floss

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The best early ‘90s children’s bookshelves were full of books about child detectives, including Cam Jansen, the fifth grade super-sleuth with a photographic memory. She was called “Cam,” short for “camera,” because she would close her eyes and say, “cli

Roma Panganiban
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For every world religion, there is a place to worship. For Christianity, there are a confusing variety of names for these places, which are frequently—but incorrectly—used interchangeably. Church, chapel, and cathedral are the trio of terms most commonly

Roma Panganiban
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Despite the notion of horses as pets and companions, horsemeat is widely and willingly consumed in countries ranging from Mexico to China to Italy. So how, exactly, did eating horsemeat become taboo for the rest of us?

Kevin Kampwirth
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There are millions of people, even in the mostly monolingual US, who speak more than one language at home. Competence in three languages is not unusual. But what about 10, 20, 30, 100 languages? What's the upper limit on the number of languages a person c

Arika Okrent
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Despite urban legends claiming that waking a sleepwalker will send them into shock or give them a heart attack, it’s pretty much harmless. While you can wake them up, you probably shouldn’t, and that’s for both your benefit.

Matt Soniak
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Few products in civilized history can match the mythology and ubiquity of Coca-Cola. In the 1930s, Coke’s inscrutability found itself at odds with a niche, but rapidly growing consumer base: Orthodox Jewish immigrants whose dietary restrictions prevented

Kevin Kampwirth
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Happy Washington's Birthday! Oh, did you think we were celebrating Presidents' Day? In fact, the federal holiday on the third Monday in February is officially known as Washington's Day to celebrate the birthday of the first president.

Jason Plautz
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Snails are objects of fascination for kids playing outside. Lucky for the snails, they have their hard shells to protect them from children and predators alike. But are they born with that natural armor, or do they have to find it or grow it for themselve

Kaitlyn Boettcher
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Falling in love is one of the best feelings in the world. The tools available to biologists have advanced immensely in the last few decades, and they're using that technology to decipher the physiology involved in falling in love.

Andrew Koltonow
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fastidious self-care is reflected in human routines—brushing teeth, combing hair, clipping nails—but also in the habits of scuttling, scream-inducing cockroaches. There’s a certain irony in the hygienic customs of insects whose presence often connotes fil

Roma Panganiban
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Combine Diet Coke and Mentos, and the result is explosive—Diet Coke shoots out of the bottle like a miniature, sticky Old Faithful. The reaction is so intense, you can make a rocket propelled by the resulting geyser. But what's the science behind this rea

Daven Hiskey
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High heels, though a staple of nearly every woman’s closet these days, aren’t exactly the most reasonably designed footwear. We wobble and slip and turn our ankles on every uneven stone, but refuse to trade them in for more sensible flats and sneakers. Wh

Caisey Robertson
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For humans, sudden gyrations of the head and neck—whether they’re from car accidents, rollercoaster rides, or chiropracty gone awry—can tear blood vessel linings in the neck, leading to clots that can cause stroke. Not so in owls, which can quickly rotate

Erin McCarthy
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Last month, the U.S. Army Corps of Engineers announced that if water in Lake Michigan drops below the level of the Chicago River, the River could reverse course and begin flowing backward to its source. Has an American river ever done an about-face like t

Matt Soniak
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