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Semen briefly builds a gel and then dismantles it
Health

Semen briefly builds a gel and then dismantles it

Proteins called semenogelins form a coagulum after ejaculation. An enzyme from the prostate then cuts up those proteins, helping the mixture liquefy. The…

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Under traditional Korean age, babies could turn two overnight
Travel

Under traditional Korean age, babies could turn two overnight

Babies were counted as one year old at birth, and everyone gained a year on New Year's Day—so a child born on December 31 turned two the next morning.

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Why celebrities can be sued for posting their own photos
Economy

Why celebrities can be sued for posting their own photos

The celebrity may be in the picture, but the photographer usually owns the copyright. Posting that paparazzi shot without permission can mean a copyright…

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Controller vibration drains fresh batteries
Games

Controller vibration drains fresh batteries

Controller rumble uses small motors with off-center weights to create vibrations, drawing extra power and shortening battery life.

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Las Vegas began as a desert railroad stop
History

Las Vegas began as a desert railroad stop

Steam locomotives needed a place to refuel, and Las Vegas began as a stop between bigger cities. Local leaders later looked beyond the rails and saw tourists…

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Why movie dialogue is always too quiet
Games

Why movie dialogue is always too quiet

Explosions and orchestral swells can drown out dialogue, leaving viewers riding the volume controls just to catch a single word.

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Why colleges make scholarships look bigger
Economy

Why colleges make scholarships look bigger

A high sticker price gives a college room to offer a large scholarship. The discount can feel like a big win even if the amount the student actually pays…

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Chinese dragons swim directly through thick clouds
Myths & mysteries

Chinese dragons swim directly through thick clouds

Chinese dragons move through clouds without wings, using magical energy and controlling the weather—more airborne serpent than European fire-breather.

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Pictionary began with a bored waiter’s party game
Culture & entertainment

Pictionary began with a bored waiter’s party game

A bored waiter turned dictionary words into a party game, having friends draw them on napkins before packaging the idea as Pictionary.

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Inventory limits defy basic physical volume
Games

Inventory limits defy basic physical volume

A game character might carry 99 apples, a spare tire and a ladder, yet hit the limit when picking up one key—because inventory rules ignore real-world volume.

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Operant conditioning relies on treats
Psychology

Operant conditioning relies on treats

A treat can turn a behavior into a reliable loop: do the action, get something enjoyable, and become more likely to do it again. The crucial part is the…

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Anterograde amnesia prevents the new
Psychology

Anterograde amnesia prevents the new

Someone with anterograde amnesia can hold a conversation and still fail to form lasting memories of what happens next. The moment may stay in awareness…

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Why cartilage injuries can be slow to heal
Health

Why cartilage injuries can be slow to heal

Cartilage has no direct blood supply, so healing materials cannot arrive through a network of blood vessels the way they can in many other tissues. Cells have…

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A Tour de France team is a traveling business behind eight riders
Economy

A Tour de France team is a traveling business behind eight riders

Mechanics, team cars, spare bicycles, accommodation, and staff have to move with the race. Sponsors help fund that operation in return for attention on the…

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Spiders weave the fabric of destiny
Myths & mysteries

Spiders weave the fabric of destiny

In esoteric symbolism, their patient web-building represents creation and interconnection—and the traps people weave for themselves.

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Coprolalia forces aggressive swearing
Psychology

Coprolalia forces aggressive swearing

Coprolalia can make a taboo word erupt in the middle of an ordinary conversation. It comes from an involuntary tic, so the word's hostility belongs to its…

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Wolves embody untamed personal instinct
Myths & mysteries

Wolves embody untamed personal instinct

In some spiritual traditions, wolves symbolize the primal urges people are taught to repress—and the call to trust instinct instead of overthinking every…

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First cross country auto trip took two full months
History

First cross country auto trip took two full months

In 1903, Dr. Horatio Nelson Jackson drove from San Francisco to New York in 63 days, often needing help to haul his car out of mud. Paved roads were scarce,…

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