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How a fetus can turn to stone
Health

How a fetus can turn to stone

In an abdominal pregnancy, a fetus can remain outside the uterus, where the body may be unable to absorb it after it dies. In rare cases, surrounding tissue…

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The brain injury that can create a gourmet obsession
Psychology

The brain injury that can create a gourmet obsession

A brain injury can change more than memory or movement; it can alter appetite and what feels rewarding. In rare cases, food becomes unusually compelling, and…

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Your avatar may change how you act offline
Psychology

Your avatar may change how you act offline

An avatar changes more than what other people see: it can change what you expect from yourself. Looking like a confident character may make confident behavior…

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Modern skyscrapers designed with giant holes for dragons
Myths & mysteries

Modern skyscrapers designed with giant holes for dragons

In feng shui, the openings give mythical mountain dragons an unobstructed route to the sea.

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Kowloon Walled City's residents built systems the city lacked
Travel

Kowloon Walled City's residents built systems the city lacked

Tens of thousands lived in a tightly packed enclave in Hong Kong, where homes and businesses grew with little formal planning. Residents improvised water…

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Your blood type can change disease risk
Health

Your blood type can change disease risk

Different blood groups carry different surface markers, and those markers can change how certain diseases affect the body. That is one reason blood type can…

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Grandmasters can play dozens of chess games blindfolded
Games

Grandmasters can play dozens of chess games blindfolded

They keep a mental map of each game and calculate moves without seeing the boards. Some elite grandmasters can do this in simultaneous exhibitions against…

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Fifty-two stolen Oscars turned up behind a supermarket
Culture & entertainment

Fifty-two stolen Oscars turned up behind a supermarket

In March 2000, thieves took 55 statuettes from a shipping facility. Ten days later, Willie Fulgear reported finding 52 behind a Los Angeles supermarket and…

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The Maya made a blue that refuses to fade
History

The Maya made a blue that refuses to fade

Maya artisans heated indigo with a special clay to create a vivid blue pigment. That combination has kept the color visible on ruins for centuries.

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Chalk is made from ancient sea life
Science

Chalk is made from ancient sea life

Geological chalk is largely built from microscopic calcium-carbonate remains that accumulated on ancient seafloors. Over time, those deposits became rock. A…

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How Venice blocks high tides from its streets
Travel

How Venice blocks high tides from its streets

MOSE’s hollow gates normally rest in housings on the seabed at the lagoon entrances. Compressed air pushes water out of them, making them rise to block an…

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An early pacemaker stored energy in a wound-up spring
Technology

An early pacemaker stored energy in a wound-up spring

Albert Hyman’s 1932 apparatus used a spring-driven generator to supply electrical impulses through a needle electrode. It was an external experimental…

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A window can leak a conversation through its vibrations
Technology

A window can leak a conversation through its vibrations

Sound in a room makes nearby surfaces vibrate very slightly. A laser microphone analyzes changes in light reflected from a suitable surface to recover those…

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Why you can jump after running off a ledge in games
Games

Why you can jump after running off a ledge in games

Games use a hidden mechanic called coyote time: after a character runs off a ledge, the game allows a brief grace period to jump as if they were still on…

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How games secretly help you stop losing
Games

How games secretly help you stop losing

Many modern action games quietly adjust their difficulty. If you keep dying, the game may reduce enemy damage or spawn more health potions to help keep you in…

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A film crew has someone tracking the cigarette between takes
Culture & entertainment

A film crew has someone tracking the cigarette between takes

The script supervisor watches continuity: how much a cigarette has burned, the level in a glass, where an actor held a prop. Shots filmed at different times…

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Why Frankenstein’s monster became green
Culture & entertainment

Why Frankenstein’s monster became green

Green makeup registered as a corpse-like gray on black-and-white film, while promotional art helped cement the monster’s green look.

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Why scientists still cannot fully explain anesthesia
Health

Why scientists still cannot fully explain anesthesia

Anesthesia changes how brain cells signal and coordinate, which can suppress consciousness and responses to pain. But awareness depends on complicated…

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