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Why red leaves a cyan ghost on a white wall
Health

Why red leaves a cyan ghost on a white wall

If you stare at a vibrant red square and then look at a white wall, you will see a glowing cyan square. This happens because the red sensors become incredibly…

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When restaurants prescribed hot meat broth
History

When restaurants prescribed hot meat broth

You didn't go out for a massive steak dinner; you went out to sip hot meat water because you felt a little bit under the weather and lacked modern medicine.

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Sliding root beers down a bar at lightning speed to patrons
Games

Sliding root beers down a bar at lightning speed to patrons

Customer service is hell, and this classic arcade game proves it. Tapper puts you in the shoes of a frantic bartender sliding mugs down four separate…

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Voicemail systems are strictly closed telephone exchanges
Technology

Voicemail systems are strictly closed telephone exchanges

Leaving a message is just interacting with an incredibly antisocial phone line. Voicemail isn't saved directly on the recipient's phone; it's recorded at a…

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Why a coffee mug and a doughnut are the same
Science

Why a coffee mug and a doughnut are the same

To a topologist, a ceramic mug and a pastry are exactly the same thing because they both possess exactly one hole. Since topology only cares about continuous…

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Hundreds of thousands still pay for AOL dial-up
Technology

Hundreds of thousands still pay for AOL dial-up

Some people simply refuse to let the 90s die. Despite broadband, fiber optics, and 5G cellular data being available globally, AOL still reports hundreds of…

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Brass items loudly broadcast your energetic state
Myths & mysteries

Brass items loudly broadcast your energetic state

If you want to keep a secret, avoid this alloy entirely. Astrological tradition insists that brass amplifies communicative frequencies, meaning wearing it…

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Brisbane CityCats move passengers along a winding river
Transport

Brisbane CityCats move passengers along a winding river

Brisbane is built around a river that meanders so aggressively that boats are the only logical shortcut. Commuters pile onto these sleek catamarans to bypass…

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Phone styluses slip into couch cushions
Travel

Phone styluses slip into couch cushions

The premium feature of hiding a tiny pen inside your device is just a delayed magic trick to make it vanish. The smooth, frictionless plastic practically…

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Open-source software exposes its entire codebase freely
Technology

Open-source software exposes its entire codebase freely

Imagine a restaurant happily handing out its secret recipes to anyone who asks. Open-source development allows anyone to read, modify, and distribute the…

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Why the GameCube had a giant handle
Games

Why the GameCube had a giant handle

While Sony and Microsoft were aggressively marketing their new machines as sleek, cutting-edge entertainment hubs for cool adults, Nintendo bolted a massive…

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What really makes carousel horses gallop
Technology

What really makes carousel horses gallop

Your majestic plastic steed doesn't have magical galloping powers. It is literally bolted to a giant metal rod suspended from a rotating ceiling, which is…

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The candy bar that combined everything first
Travel

The candy bar that combined everything first

Nashville tourism violently refuses to be entirely about heavily commercialized country music. In the early twentieth century, a fiercely bold local factory…

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What happens to time near light speed
Science

What happens to time near light speed

If you somehow manage to travel fast enough to hit the universal speed limit, the clock literally ceases to tick for you. The faster you hurtle through space,…

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Why WD-40 won't keep your hinges lubricated
Technology

Why WD-40 won't keep your hinges lubricated

You are fixing your hinges entirely wrong. This famous blue and yellow can contains a harsh solvent that breaks down grease and displaces water. It will stop…

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Pseudo-Dionysius faked his identity for a millennium
Myths & mysteries

Pseudo-Dionysius faked his identity for a millennium

Identity theft is a joke until you fool the entire scholarly world for over a thousand years. An anonymous Syrian philosopher wanted people to take his…

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Cradles act as a cosmic safety net for your bad choices
Myths & mysteries

Cradles act as a cosmic safety net for your bad choices

A half-hexagon shape made of highly supportive angles. It literally catches you when you fall, which sounds nice on paper, but it completely removes any…

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Malaria eradication yields massive dividends
Economy

Malaria eradication yields massive dividends

Because mosquitoes are arguably the most expensive pests on earth. The sheer medical and societal drain caused by malaria means that spending billions to…

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