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Paris tried receiving mail in metal balls during a siege
Transport

Paris tried receiving mail in metal balls during a siege

During the 1870–71 siege, sealed zinc spheres carrying letters were put into the Seine upstream of Paris. The plan was for the current to move them past enemy…

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The desert caught between two unwanted border claims
Travel

The desert caught between two unwanted border claims

Bir Tawil lies between Egypt and Sudan. Each country's preferred border gives it the more valuable Hala'ib area while leaving Bir Tawil to the other side.…

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A male platypus carries a venom-delivering spur on each hind ankle
Travel

A male platypus carries a venom-delivering spur on each hind ankle

The spur connects to a gland, with venom production associated especially with the breeding season. A strike can cause severe, lasting pain in humans. The…

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The Grand Canyon is much younger than the rocks it exposes
Travel

The Grand Canyon is much younger than the rocks it exposes

Some rock near its bottom is close to two billion years old, while the familiar canyon landscape largely developed over the past five or six million years.…

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Cut Alaska in half and both pieces beat Texas
Travel

Cut Alaska in half and both pieces beat Texas

Alaska is more than twice the size of Texas, so even if divided in half, each piece would still be larger than Texas.

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Why ancient Greeks ate cabbage after drinking
History

Why ancient Greeks ate cabbage after drinking

They believed cabbage was hostile to wine and could drive alcohol out of the body—a supposed hangover cure, not a proven one.

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Most article sharers argue without reading past the headline
Culture & entertainment

Most article sharers argue without reading past the headline

A majority of users who share and argue over articles never scroll past the headline, leaving much of the debate based on just a few words.

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GLaDOS is voiced by an opera singer
Games

GLaDOS is voiced by an opera singer

Ellen McLain’s trained operatic voice is behind the end-credit song, whose polished singing contrasts with GLaDOS’s robotic persona.

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Mario's longtime voice also belonged to a Skyrim dragon
Games

Mario's longtime voice also belonged to a Skyrim dragon

Charles Martinet voiced Paarthurnax, the ancient dragon mentor, as well as Nintendo's famously cheerful plumber. One performer supplied both the exuberance of…

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String interpolation inserts variables directly into sentences without concatenation
Technology

String interpolation inserts variables directly into sentences without concatenation

It lets a program slot a variable directly into a sentence instead of building the sentence by joining separate strings.

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Pinterest is organized daydreaming
Culture & entertainment

Pinterest is organized daydreaming

Pinterest lets people organize visual plans for weddings they aren't having or houses they don't own—a highly organized form of daydreaming.

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Death Stranding turns bodily fluids into weapons
Games

Death Stranding turns bodily fluids into weapons

The arsenal includes grenades made from the hero’s sweat, blood, and excrement.

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Giant sloths dug cave systems beneath South America
Science

Giant sloths dug cave systems beneath South America

Some fossil burrows in South America are tunnels big enough to walk into, with deep grooves scratched into their walls. Those marks point to powerful claws,…

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Zelda and Rainbow Six's Ash share a voice
Games

Zelda and Rainbow Six's Ash share a voice

Patricia Summersett voices Princess Zelda in Breath of the Wild and Tears of the Kingdom, and Ash in Rainbow Six Siege. The same performer moves between royal…

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Elephant ancestors evolved bizarre elongated snouts before developing useful trunks
Science

Elephant ancestors evolved bizarre elongated snouts before developing useful trunks

Palaeomastodon fossils show an elongated snout that may hint at an early step toward the elephant trunk. But fossils preserve bone, not the soft tissue that…

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A hill's steepness can feel different when you are exhausted
Psychology

A hill's steepness can feel different when you are exhausted

Experiments by Dennis Proffitt and colleagues linked reported slope estimates with fatigue and physical condition. The interpretation has been debated,…

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Walking completely on hands was a historical challenge
Transport

Walking completely on hands was a historical challenge

A hand-walker has to balance a whole body over a tiny base, then move that base one palm at a time. The shoulders do the lifting and the wrists handle the…

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Why hotel staff are called bellhops
Science

Why hotel staff are called bellhops

The “bell” in bellhop was once literal: hotel guests rang brass bells, and staff were expected to hop to it. The bells faded from everyday hotel life, but the…

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