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Fear of Friday the thirteenth has a name
Myths & mysteries

Fear of Friday the thirteenth has a name

The term combines Frigg, the Norse goddess associated with Friday, with Greek roots for thirteen.

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Acetaminophen dampens some brain responses to emotional pain
Health

Acetaminophen dampens some brain responses to emotional pain

Acetaminophen can dampen some of the brain’s responses to emotional as well as physical pain. While it is active, other people’s distress may feel less vivid…

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An anti-piracy soundtrack led to a music-rights dispute
Culture & entertainment

An anti-piracy soundtrack led to a music-rights dispute

Composer Melchior Rietveldt said music commissioned for limited use in an anti-piracy film later appeared on commercial DVDs without the payments he was owed.…

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Ancient desert tombs perfectly mirror the stars
Myths & mysteries

Ancient desert tombs perfectly mirror the stars

The theory attributes the pyramids’ layout to naked-eye observations of the stars, linking the pharaohs’ tombs to the heavens.

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Traditional sleep talismans burn trapped nightmares at dawn
Myths & mysteries

Traditional sleep talismans burn trapped nightmares at dawn

In Ojibwe tradition, dreamcatchers were maternal talismans meant to protect sleeping infants. Their web-like threads were believed to catch nightmares, which…

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Coca-Cola explored charging more when the weather got hotter
Technology

Coca-Cola explored charging more when the weather got hotter

In 1999, reports described the company's work on vending technology that could adjust prices with temperature. The business logic was simple: a cold drink…

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Your envelope can carry a fluorescent tracking mark
Technology

Your envelope can carry a fluorescent tracking mark

US postal sorting equipment has used an ID tag printed in fluorescent ink on the back of an envelope. It gives machinery a way to identify the individual…

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The materials that grow thicker when stretched
Science

The materials that grow thicker when stretched

An auxetic material grows wider when pulled because its internal cells change shape as they open. Their angled walls rotate outward, like hinged panels…

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Watching movies together synchronizes heartbeats
Psychology

Watching movies together synchronizes heartbeats

A movie can make a room breathe—and beat—in time without anyone speaking. Suspense raises arousal; a lull lets it settle. When viewers share the same sequence…

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Comic Sans’s creator barely used his own font
Culture & entertainment

Comic Sans’s creator barely used his own font

He designed it for a software tutorial featuring a cartoon dog, but avoided using it in his own professional writing.

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Luck of a rabbit foot has deep magical roots
Myths & mysteries

Luck of a rabbit foot has deep magical roots

A Celtic tradition linked rabbits to underworld spirits because they lived underground, giving the severed paw its supposed luck-giving power.

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Some counterfeit dollars were so good they acquired a special name
Economy

Some counterfeit dollars were so good they acquired a special name

'Supernotes' imitated the appearance and security features of genuine U.S. $100 bills unusually well. U.S. authorities accused North Korea of involvement,…

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America has more public libraries than McDonald's
Economy

America has more public libraries than McDonald's

Nearly 17,000 public library branches dot the U.S.—more locations than McDonald’s. They give people free access to information across the country.

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John Malkovich starred in a film sealed until 2115
Culture & entertainment

John Malkovich starred in a film sealed until 2115

100 Years, made with John Malkovich and director Robert Rodriguez for Louis XIII cognac, was sealed in 2015 for a planned 2115 release. The century-long wait…

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Mixed practice makes you choose the method, not just repeat it
Psychology

Mixed practice makes you choose the method, not just repeat it

A worksheet with one problem type tells you which technique to use before you begin. Mixing related types removes that clue, forcing you to recognize the…

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A Swedish silver mine once offered a bedroom 500 feet underground
Travel

A Swedish silver mine once offered a bedroom 500 feet underground

Sala's former mine suite put a double bed roughly 155 meters below the surface, surrounded by excavated rock. Guests could contact staff by intercom rather…

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Poland's underground cathedral carved from salt
Travel

Poland's underground cathedral carved from salt

Miners carved chapels, glowing chandeliers, and life-size statues from the rock salt, turning the tunnels into an underground art world.

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London’s lost-and-found gets flooded with umbrellas
Transport

London’s lost-and-found gets flooded with umbrellas

A London downpour sends umbrellas onto buses, trains, and into cafés; the rush home leaves them behind. Then the lost-property office gets a pile of nearly…

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