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Lex Luthor was originally a redhead
Culture & entertainment

Lex Luthor was originally a redhead

He first appeared with a full head of red hair, but an artist later drew him bald by mistake. DC kept the look and explained it as an accident in Superman’s…

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The island inside a lake inside an island
History

The island inside a lake inside an island

Vulcan Point is a tiny island in a lake on Volcano Island, which sits in Taal Lake on the Philippine island of Luzon—a geographic nesting doll.

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Spontaneous wounds appear when you feel too much guilt
Myths & mysteries

Spontaneous wounds appear when you feel too much guilt

Reports of stigmata describe unexplained wounds, often on the hands, among deeply religious people. Linking them to guilt is an interpretation, not an…

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Canada's Fan Tan Alley narrows to less than a meter
History

Canada's Fan Tan Alley narrows to less than a meter

The passage in Victoria's Chinatown began in a district of shops, gambling rooms, and other businesses. Its tightest stretch makes the gap between buildings…

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Why avocado trees need a neighbor to pollinate
Science

Why avocado trees need a neighbor to pollinate

Avocado flowers open first in a female phase and later in a male phase, so pollen and receptive flowers have to line up in time. Trees with complementary…

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Spinning cooling fans create turbulent noise
Technology

Spinning cooling fans create turbulent noise

At high speeds, fans force air through narrow spaces, where it becomes turbulent and noisy. That rushing-air sound can make a heavily cooled desktop PC drone…

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A mirror-bright silicon wafer still has several kinds of unevenness
Technology

A mirror-bright silicon wafer still has several kinds of unevenness

Chipmakers distinguish surface roughness from bow, warp, and thickness variation. A wafer can look perfectly polished yet curve enough to matter when tiny…

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Piggyback rides may be prehistoric
Transport

Piggyback rides may be prehistoric

A person carrying a child on their back keeps the load close to the body and leaves both hands free. No wheels, harness engineering or road required—just the…

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Why blackjack dealers must hit on 17
Games

Why blackjack dealers must hit on 17

When casino rules require it, a dealer hits on a soft 17 instead of standing. That can make the dealer bust more often, but also gives them a chance to…

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Why your mother's genes may affect male-pattern baldness
Health

Why your mother's genes may affect male-pattern baldness

Men inherit their single X chromosome from their mother, and one major receptor gene linked to male-pattern baldness sits on that chromosome. That makes a…

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Baby slings keep infants strapped to the chest
Transport

Baby slings keep infants strapped to the chest

A sling holds the baby close and spreads the weight across the caregiver’s shoulders and torso. It leaves both hands free for the journey, though the small…

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Why cork takes decades to make a wine stopper
Economy

Why cork takes decades to make a wine stopper

A cork oak needs about 25 years before its bark is thick enough to harvest for stoppers. After the harvest, the bark takes another nine years to grow back.

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Punts rely on a massive pole shoved into mud
Transport

Punts rely on a massive pole shoved into mud

The pole plants in the mud, and the punter pushes against the riverbed while the flat-bottomed boat glides ahead. No propeller, no engine—just a very long…

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A processor multiplies a clock into billions of beats
Technology

A processor multiplies a clock into billions of beats

A reference oscillator provides a steady timing signal, while clock circuitry derives the faster rhythms used inside the chip. Those cycles coordinate when…

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Chand Baori turned a water source into 3,500 steps
History

Chand Baori turned a water source into 3,500 steps

The stepwell at Abhaneri in Rajasthan descends through 13 levels. Its repeating staircases let people approach water as the level changed, while the depth…

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Sarah Bernhardt carved her grief into marble
Culture & entertainment

Sarah Bernhardt carved her grief into marble

The celebrated actress was also a sculptor. After her husband Jacques Damala died, she made a funerary portrait that presents him as if asleep beneath a…

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How The Bucket List made its phrase famous
Travel

How The Bucket List made its phrase famous

The phrase was rare in common speech before Morgan Freeman and Jack Nicholson starred in the film that popularized it.

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Severing an astral cord leaves you stuck outside reality
Myths & mysteries

Severing an astral cord leaves you stuck outside reality

In astral-projection lore, snapping the tether between consciousness and the sleeping body supposedly leaves the spirit wandering, unable to return to its…

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