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An early escalator was a Coney Island attraction
Transport

An early escalator was a Coney Island attraction

Jesse Reno demonstrated his inclined elevator at Coney Island in 1896. It used a moving cleated surface rather than the familiar stair-shaped steps of modern…

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Buffett’s fortune shows how late compounding can look dramatic
Economy

Buffett’s fortune shows how late compounding can look dramatic

When a growing investment base earns further returns, later percentage gains apply to much larger sums. Buffett’s long career makes that effect especially…

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Mario’s hat and mustache solved a pixel problem
Games

Mario’s hat and mustache solved a pixel problem

On a tiny pixel grid, a hat avoided the need to animate hair, while a mustache made Mario’s face easier to read. His overalls also helped make his moving arms…

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Medieval writer Chrétien de Troyes originally described the Holy Grail as a serving dish rather than a sacred cup
Myths & mysteries

Medieval writer Chrétien de Troyes originally described the Holy Grail as a serving dish rather than a sacred cup

Chrétien’s 12th-century romance described the graal as a wide, somewhat deep serving dish for carrying a single communion wafer. Later writers turned it into…

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The space shuttle got seven inches per gallon
Transport

The space shuttle got seven inches per gallon

The shuttle spent its fuel climbing out of Earth’s gravity, not cruising down a highway. Divide that short launch distance by all the propellant needed to…

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Barbie and Grand Theft Auto shared a software toolkit
Games

Barbie and Grand Theft Auto shared a software toolkit

Barbie Horse Adventures and GTA titles used RenderWare, middleware that helped developers build and display 3D worlds. An engine does not dictate the story,…

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Sharks wear tiny teeth instead of scales
Science

Sharks wear tiny teeth instead of scales

A shark’s tiny tooth-like denticles guide water along its body. Their aligned ridges help the flow stay smooth and reduce drag, so the skin does more than…

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A tenth of all photos were taken in the past year
Technology

A tenth of all photos were taken in the past year

Smartphones now help generate trillions of images each year. Estimates suggest nearly one in 10 photographs ever taken was snapped in the past year alone.

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Harvard once accepted livestock instead of cash
Economy

Harvard once accepted livestock instead of cash

In colonial New England, money was scarce enough that college accounts could be settled with goods or animals. A cow could help pay a student's bill because…

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A giraffe's dark tongue is thought to help with a sun-filled job
Science

A giraffe's dark tongue is thought to help with a sun-filled job

It reaches around leaves for hours, exposing far more tissue than most animals show while feeding. Dark pigmentation is thought to help protect that exposed…

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Shibuya gives pedestrians the entire intersection
Travel

Shibuya gives pedestrians the entire intersection

During the crossing phase, traffic stops in every direction, so people can walk diagonally as well as straight across. At busy times, enormous crowds share…

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Jenga simply means “build” in Swahili
Games

Jenga simply means “build” in Swahili

Its British creator chose the Swahili verb as the game's name.

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Edward Kelley convinced a Holy Roman Emperor he could turn base metals into gold by using secret magical powders
Myths & mysteries

Edward Kelley convinced a Holy Roman Emperor he could turn base metals into gold by using secret magical powders

Kelley used sleight of hand to slip real gold into bubbling cauldrons, making it look as if his powder could turn lead into gold. When Rudolf II demanded…

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Ford kept a tube from Edison's deathbed room
History

Ford kept a tube from Edison's deathbed room

After Thomas Edison died in 1931, his son Charles noticed open test tubes in the bedroom and had the attending physician seal them. He later sent one to Henry…

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Manifesting is just prosperity gospel for millennials
Myths & mysteries

Manifesting is just prosperity gospel for millennials

Writing down a desired future and focusing on it echoes the 19th-century New Thought movement and modern prosperity gospel, repackaged with aesthetic vision…

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Wii Bowling punishes you for throwing backward
Games

Wii Bowling punishes you for throwing backward

If you release the B button on your backswing, the ball flies into the virtual crowd behind you. The Mii spectators gasp, shriek and spin around.

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A submarine must keep its machinery from advertising its location
Transport

A submarine must keep its machinery from advertising its location

Pumps, motors, and rotating equipment produce vibration that can reach the hull and radiate into the water. Isolation mounts, balancing, and careful…

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Why a Bullet Hole Usually Won't Pop a Blimp
Transport

Why a Bullet Hole Usually Won't Pop a Blimp

Helium airships are kept at very low internal pressure, so a bullet hole would let gas escape slowly rather than make the craft burst.

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