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Some cave walls feel like cream cheese
Science

Some cave walls feel like cream cheese

A hard cave deposit is made of crystals packed into a solid crust. In these softer patches, tiny calcite crystals are still floating in water instead, so the…

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Members of the Heaven's Gate cult famously wore matching black Nike Decades while trying to hitch a ride on a comet
Myths & mysteries

Members of the Heaven's Gate cult famously wore matching black Nike Decades while trying to hitch a ride on a comet

They believed an alien spaceship trailing Hale-Bopp would carry their souls away; members died by mass suicide in 1997 with travel bags and $5.75 each.

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Maggots were intentionally packed into open wounds
Myths & mysteries

Maggots were intentionally packed into open wounds

Surgeons used certain maggots because they eat dead tissue while leaving living tissue alone, helping clean battle wounds and stave off gangrene.

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Double buffering hides messy rendering in invisible hardware
Games

Double buffering hides messy rendering in invisible hardware

It draws the next frame in a back buffer, then swaps that completed image onto the screen. You see a finished frame instead of the scene being painted pixel…

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Film crews spray mirrors to erase reflections
Culture & entertainment

Film crews spray mirrors to erase reflections

A matte coating dulls the reflections that might reveal crew and equipment to the camera—but it also makes the mirror useless for its ordinary purpose.

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A publisher proposed putting game ads on gravestones
Games

A publisher proposed putting game ads on gravestones

Acclaim announced the idea in 2002 while promoting Shadow Man: 2econd Coming. Families would be offered money for advertising space on memorials. The proposal…

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First class seating started on boats rather than planes
Travel

First class seating started on boats rather than planes

Ocean liners used first class to separate elite travelers from the harsher conditions on lower decks.

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Foley artists make everyday objects perform someone else's sounds
Culture & entertainment

Foley artists make everyday objects perform someone else's sounds

An object is chosen for what a microphone hears, not only for what it is. A sheet of paper can provide a sharp rustle, while other props supply impacts,…

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Mass Effect's Reapers borrowed their silhouette from a cuttlefish
Games

Mass Effect's Reapers borrowed their silhouette from a cuttlefish

The elongated body and trailing appendages give the giant machines an organic outline beneath their mechanical surfaces. That mixture makes them read as more…

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An Egyptian king stole Winston Churchill’s watch
History

An Egyptian king stole Winston Churchill’s watch

Farouk learned sleight of hand from a professional thief, then put that training to work on Churchill’s pocket watch during dinner. It was a diplomatic visit…

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Why your brain can’t maintain thousands of friendships
Psychology

Why your brain can’t maintain thousands of friendships

A friendship stays close through repeated contact, and your day has only so many hours for calls, visits, and messages. As the number of relationships rises,…

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How your brain turns violent urges into hobbies
Psychology

How your brain turns violent urges into hobbies

A person can channel aggressive energy into a demanding sport, a competitive game, or another absorbing pursuit. In psychoanalytic theory, that redirection is…

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Facial slaps are prescribed as instant panic attack cures
Culture & entertainment

Facial slaps are prescribed as instant panic attack cures

The dramatic slap that supposedly resets a panicking character’s nervous system is a TV fantasy, not a real cure.

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An early car-rental business charged by the mile
Travel

An early car-rental business charged by the mile

In 1916, Joe Saunders rented cars in Omaha for ten cents per mile. Charging for distance made occasional access to a car into a service, rather than requiring…

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Framing our entire planet as a single biological organism
Myths & mysteries

Framing our entire planet as a single biological organism

The Gaia hypothesis treats the atmosphere, oceans and living things as interconnected systems that help regulate conditions on Earth, like parts of one…

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Wristband adhesives break permanently when peeled
Culture & entertainment

Wristband adhesives break permanently when peeled

Tiny cuts in the adhesive make the band tear if someone tries to peel it off, preventing attendees from passing it to friends outside.

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Rolling two ones in Craps is universally called snake eyes
Games

Rolling two ones in Craps is universally called snake eyes

In a pass-line bet, a total of two loses the round, so snake eyes can wipe out the wager.

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Blackjack lets you surrender half your bet
Games

Blackjack lets you surrender half your bet

Where surrender is offered, you can give up after the deal and lose half your wager rather than risk playing a weak hand, such as 16 against an ace.

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