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Bowling tenth frames allow three separate throws
Economy

Bowling tenth frames allow three separate throws

Those extra rolls are scoring bonuses: a strike or spare in the 10th needs follow-up throws to calculate its full value. So the frame that looks like the end…

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Recency bias incorrectly predicts tomorrow
Economy

Recency bias incorrectly predicts tomorrow

A few price increases can make the next one feel inevitable. People may treat the latest rise as a forecast, even when the longer record points the other way.

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Many fish species can change their sex
Myths & mysteries

Many fish species can change their sex

In some fish species, environmental conditions can trigger a change in sex.

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Deep ocean swells transfer energy instead of liquid mass
Transport

Deep ocean swells transfer energy instead of liquid mass

In a passing swell, water particles rise, fall, and circle back while the wave’s energy continues onward. The sea delivers the motion without delivering the…

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Mountain Dew is mostly made of concentrated orange juice
Myths & mysteries

Mountain Dew is mostly made of concentrated orange juice

Despite its neon-green color, Mountain Dew gets some of its citrus flavor from concentrated orange juice. It isn’t mostly juice, though; high-fructose corn…

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Exaltation placements act like extremely overhyped guests
Myths & mysteries

Exaltation placements act like extremely overhyped guests

In astrology, exaltation means a planet is considered especially powerful in a sign that isn’t regarded as its home.

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San Francisco bay ferries connect distant coastal suburbs
Transport

San Francisco bay ferries connect distant coastal suburbs

The bay separates these suburbs by land route but joins them by water. Ferries make the crossing a transit link, turning a stretch of open bay into a shortcut…

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You take 20,000 breaths without noticing
Health

You take 20,000 breaths without noticing

Most of the time, your brain handles breathing in the background by signaling the diaphragm to move. Notice it, and you may start directing each inhale and…

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Why gamers save powerful items until the end
Games

Why gamers save powerful items until the end

Players often finish a game with powerful items still unused because they keep saving them for a future challenge that never comes.

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Quetzalcoatlus forced scientists to explain how a giant could become airborne
Science

Quetzalcoatlus forced scientists to explain how a giant could become airborne

The enormous pterosaur's fossils have been studied to reconstruct its posture, movement, and possible launch. Its proportions make takeoff a mechanical…

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Electric bicycles aggressively assist your weak pedaling
Technology

Electric bicycles aggressively assist your weak pedaling

Torque sensors measure how hard you pedal, and the motor adds assistance when you push harder—especially useful on a hill.

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America made steel pennies to save copper for war
Economy

America made steel pennies to save copper for war

The Mint used zinc-coated steel to save copper for ammunition and communications wiring, but the pennies rusted and looked enough like dimes to be mistaken…

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Mortal Kombat started with Jean-Claude Van Damme
Culture & entertainment

Mortal Kombat started with Jean-Claude Van Damme

Midway first pitched a fighting game starring Van Damme, but when the deal fell through, the developers reworked the martial artist as Johnny Cage.

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A train's brakes are designed to react when the train breaks apart
Travel

A train's brakes are designed to react when the train breaks apart

In an automatic braking system, loss of the controlling pressure can apply the brakes rather than release them. That lets separated portions stop instead of…

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How ordinary swells become rogue waves
Science

How ordinary swells become rogue waves

When several wave crests arrive together, their heights can add up into a peak much taller than any one wave. Strong currents may focus waves in one place,…

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Turning vapor back into solids completes the great work
Myths & mysteries

Turning vapor back into solids completes the great work

In alchemical symbolism, coagulation was the step in which vapor became solid again; practitioners hoped the result would be purified, enduring matter.

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Memes outnumber true educational content
Myths & mysteries

Memes outnumber true educational content

Online discussions can be dominated by memes, starter-pack images, and cynical jokes, making serious literature harder to find.

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Insomniac Games was originally Xtreme Software
Games

Insomniac Games was originally Xtreme Software

The studio began as Xtreme Software, but changed its name to Insomniac after discovering another company had already trademarked the original name.

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