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Spacecraft keyboards have no spacebar key installed on them
Myths & mysteries

Spacecraft keyboards have no spacebar key installed on them

Spacecraft control panels use specialized inputs for orbital maneuvers rather than standard typing layouts, so they have no need for a spacebar.

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Temperance Tarot card pours liquid between two gold cups
Myths & mysteries

Temperance Tarot card pours liquid between two gold cups

The liquid poured between the cups symbolizes moderation: finding a middle ground between extremes.

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Sega's airplane console borrowed the screen in your seat
Technology

Sega's airplane console borrowed the screen in your seat

Japan Airlines began lending the Mega Jet on international flights in 1993. The controller and console were combined, but the picture appeared on the seat's…

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Hidden letter grids rely on intense timer stress
Games

Hidden letter grids rely on intense timer stress

In Boggle, players race a timer to find words in a grid of letters inside a shaking cube.

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Twin primes are prime numbers that are separated by two
Science

Twin primes are prime numbers that are separated by two

The hard part is proving that prime numbers can stay exactly two apart forever. Mathematicians have shown that infinitely many prime pairs fall within some…

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When the sun unleashes millions of bomb blasts worth of energy
Science

When the sun unleashes millions of bomb blasts worth of energy

A coronal mass ejection begins when tangled magnetic fields on the Sun reconnect and launch a huge cloud of charged gas into space. Its energy can rival…

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Unicorns refuse to be tamed by anyone but maidens
Myths & mysteries

Unicorns refuse to be tamed by anyone but maidens

Medieval bestiaries described unicorns as swift and vicious enough to skewer elephants, yet docile in the presence of a young, unmarried woman.

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Why government documents are usually public domain
Culture & entertainment

Why government documents are usually public domain

U.S. federal government works are generally in the public domain, so people can reuse them—even sell copies—without seeking copyright permission.

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Why coincidences feel more magical than they are
Psychology

Why coincidences feel more magical than they are

Your mind is built to notice patterns, so two events that line up can feel like a message. But you encounter far more chances for unrelated things to coincide…

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A Caribbean island can have a beach but no drinking-water supply
Travel

A Caribbean island can have a beach but no drinking-water supply

Small, low islands may lack rivers, reliable groundwater, or enough land to support a permanent community. Fresh water, power, and supplies then have to come…

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Laminators melt plastic pouches to permanently seal paper
Technology

Laminators melt plastic pouches to permanently seal paper

Heated rollers press the pouch's heat-activated adhesive around the paper, fusing it into a sealed plastic covering.

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Delivering pizzas in a yellow taxi while ignoring traffic
Games

Delivering pizzas in a yellow taxi while ignoring traffic

In Crazy Taxi, players earned tips by driving recklessly, narrowly avoiding collisions and launching off ramps as they rushed passengers to destinations like…

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Assuming your subjective perception of reality is perfect
Psychology

Assuming your subjective perception of reality is perfect

A coworker says your comment was rude; you remember it as straightforward. Each person experiences their own interpretation as the facts, not as a guess…

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The Boomerang Nebula is colder than the cosmic background
Science

The Boomerang Nebula is colder than the cosmic background

Its rapidly expanding gas cools to about one kelvin, below the roughly 2.7-kelvin cosmic microwave background. Expansion draws on the gas's internal energy,…

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Neoplatonists believed in staring at a giant one
Myths & mysteries

Neoplatonists believed in staring at a giant one

For Neoplatonists, ultimate reality was a single entity, and intense contemplation was a way to approach it.

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Diamond is an astonishingly good heat conductor
Science

Diamond is an astonishingly good heat conductor

Diamond can cut a line through ice by carrying heat to the contact point, not by making heat of its own. Vibrations move efficiently through its tightly…

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Japanese vending machines serve hot meals
Travel

Japanese vending machines serve hot meals

Some Japanese vending machines serve more than snacks: they dispense hot corn soup and fresh noodle dishes at the push of a button.

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Meister Eckhart was heavily audited by tax collectors
Myths & mysteries

Meister Eckhart was heavily audited by tax collectors

Medieval municipal authorities pursued him over property disputes and dues owed by his monastic chapter—even a famous theologian had local financial…

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