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The tiny recorder that changed documentaries
Culture & entertainment

The tiny recorder that changed documentaries

The portable Nagra III became a key location-sound recorder, with synchronization versions helping audio stay aligned with separately recorded film. Crews…

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How chimpanzees solved a banana puzzle
Psychology

How chimpanzees solved a banana puzzle

A banana hanging overhead can turn a few ordinary boxes into a ladder. Chimpanzees have solved this kind of puzzle by moving and stacking objects until the…

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The euro architect who called currencies a monoculture
Economy

The euro architect who called currencies a monoculture

He worried that relying on national currencies was like planting a whole field with one crop: efficient until the same shock hit everything. He wanted local…

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Tacoma Narrows twisted itself into a feedback loop
Science

Tacoma Narrows twisted itself into a feedback loop

In the 1940 collapse, the bridge's twisting changed the airflow, and the changing aerodynamic forces drove further twisting. This aeroelastic flutter fed…

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A border mistake helped a tiny Italian state avoid its neighbors’ taxes
History

A border mistake helped a tiny Italian state avoid its neighbors’ taxes

Cospaia emerged after a 15th-century boundary agreement left a small strip of land between Florence and the Papal States outside either side’s effective…

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French engineer elegantly solved the color transition
Technology

French engineer elegantly solved the color transition

Georges Valensi’s 1938 system separated brightness from color: older black-and-white sets decoded the brightness signal, while color TVs used both. That let…

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The dangerous walkway rebuilt over Spain’s gorge
Travel

The dangerous walkway rebuilt over Spain’s gorge

The Caminito del Rey was built for hydroelectric workers, then became notorious as its path deteriorated. It reopened with a modern wooden walkway laid over…

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The skater barred from competing who coached champions
Culture & entertainment

The skater barred from competing who coached champions

Barred from official competition because she was Black, Mabel Fairbanks bought secondhand skates and coached future minority champions instead.

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The screwdriver that held a plutonium core apart
Science

The screwdriver that held a plutonium core apart

A screwdriver was the only thing keeping the beryllium reflector from closing around the plutonium core. Once it slipped, the assembly briefly became…

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Daphne Oram helped turn the BBC into an electronic-music lab
Culture & entertainment

Daphne Oram helped turn the BBC into an electronic-music lab

She co-founded the BBC Radiophonic Workshop, where sound could be cut, looped, transformed, and assembled rather than simply recorded from an instrument. She…

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The golden dome where visitors must not speak
Travel

The golden dome where visitors must not speak

Visitors must book days ahead, watch an orientation video, and remain silent inside the Matrimandir, where they can view a large crystal.

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The Star Wars Holiday Special introduced Boba Fett in animation
Culture & entertainment

The Star Wars Holiday Special introduced Boba Fett in animation

The 1978 broadcast included an animated adventure featuring the bounty hunter before his appearance in The Empire Strikes Back. That segment gave him his…

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Coffee enemas became part of an unproven cancer regimen
Health

Coffee enemas became part of an unproven cancer regimen

Max Gerson's treatment combined a strict diet, supplements, and repeated enemas, based on a theory about detoxifying the body. The National Cancer Institute…

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Yongma Land lets you pay to explore its ruins
Travel

Yongma Land lets you pay to explore its ruins

The owner of Seoul’s abandoned Yongma Land charges visitors to explore its rusting rides. K-pop directors and tourists come for the eerie amusement-park…

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That spinning desk toy isn't powered by light
Science

That spinning desk toy isn't powered by light

The black side of the rotor warms the nearby gas more than the shiny side. In the narrow gaps around the vanes, gas flows from cooler regions toward warmer…

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Italian peasants battled witches with fennel stalks
History

Italian peasants battled witches with fennel stalks

For the Benandanti, the fight was about whether crops would thrive: on certain nights, they believed their souls left their sleeping bodies to battle witches…

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Biosphere 2 used giant lungs to regulate air pressure
Travel

Biosphere 2 used giant lungs to regulate air pressure

Their heavy rubber membranes rose and fell inside the geodesic chambers as air pressure changed, helping keep the glass habitat from bursting in the desert…

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Tennessee ghost successfully murdered a guy
Myths & mysteries

Tennessee ghost successfully murdered a guy

In the Bell Witch legend, the spirit tormented the Bell family and claimed it had poisoned John Bell’s medicine. A vial of toxic liquid was reportedly found…

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