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Kickstands rely on a precarious leaning angle
Transport

Kickstands rely on a precarious leaning angle

A kickstand props the bike at an angle, with the tires and stand making a three-point base. Keep the bike’s weight inside that triangle and it stays up; lean…

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How expecting a terrible date can ruin it
Psychology

How expecting a terrible date can ruin it

A gloomy prediction can change how you behave before the date even starts. You may hold back, sound guarded, or miss a chance to connect; then the other…

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A retailer refused to sell the PSP Go because it could not sell its games
Technology

A retailer refused to sell the PSP Go because it could not sell its games

In 2009, Dutch chain Nedgame objected to the handheld's download-only model as well as its price. Removing the disc drive also removed a reason for customers…

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Celtic bards claimed they could literally rhyme their political enemies to death using highly specific magical satires
Myths & mysteries

Celtic bards claimed they could literally rhyme their political enemies to death using highly specific magical satires

Bards' satires were believed to wield supernatural force: a king who insulted or underpaid one might be struck with boils, stripped of his title, or even…

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Solar arcs push sudden life developments
Myths & mysteries

Solar arcs push sudden life developments

In astrology, a solar arc advances chart placements until one makes contact with another, a moment astrologers interpret as the start of a major life change.

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Heavy spinning rotors store immense amounts of kinetic energy
Technology

Heavy spinning rotors store immense amounts of kinetic energy

A heavy rotor stores energy by spinning rapidly, like a mechanical battery. Suspending it on magnetic bearings in a vacuum reduces friction; when power is…

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Belomancy tosses sharp arrows to find direction
Myths & mysteries

Belomancy tosses sharp arrows to find direction

Practitioners marked several arrows, tossed them, and treated the one pointing in a prominent direction as a guide.

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Crash Team Racing boosts heavily rely on consecutive slides
Games

Crash Team Racing boosts heavily rely on consecutive slides

Chaining drifts on straightaways lets players keep boosts going and maintain high speed, even if it means steering back and forth across an empty road.

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The glass tax that made greenhouses too expensive
Economy

The glass tax that made greenhouses too expensive

When a glass tax depended on weight, manufacturers cut the weight by making thinner panes. The result was fragile glass, and the extra cost helped make…

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Skeeball lanes traditionally measure ten feet in length
Games

Skeeball lanes traditionally measure ten feet in length

The ten-foot ramp gives each roll a fixed run-up to the scoring rings, but the tiny center ring is still a tough target.

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Zodiac killer explicitly used astrological symbols in his cryptic ciphers to mock baffled police investigators
Myths & mysteries

Zodiac killer explicitly used astrological symbols in his cryptic ciphers to mock baffled police investigators

He used the cross-and-circle symbol for Earth in his letters, turning a celestial mark into a calling card.

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The question that won Game of Thrones its adaptation
Culture & entertainment

The question that won Game of Thrones its adaptation

Martin tested whether they understood the books' clues by asking who Jon Snow's mother was. Benioff and Weiss answered correctly, earning his blessing for the…

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Why multigrain bread may still be white bread
Health

Why multigrain bread may still be white bread

“Multigrain” tells you there’s more than one kind of grain in the loaf; it says nothing about whether those grains are whole or refined. A bread can wear a…

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Why runners replace meals with energy drinks
Games

Why runners replace meals with energy drinks

Some runners use energy drinks in place of meals, treating them as a substitute for food.

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Straitjackets were asylum gear before escape acts
Culture & entertainment

Straitjackets were asylum gear before escape acts

They were once used as restraints in psychiatric institutions; escape artists later turned breaking out of them into a crowd-pleasing act.

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Subcutaneous fat sits entirely outside the muscular layer
Health

Subcutaneous fat sits entirely outside the muscular layer

Subcutaneous fat sits between the skin and the muscles. That position lets it cushion the tissues underneath and slow heat loss, like a layer of padding and…

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Red gladhands supply emergency air lines
Transport

Red gladhands supply emergency air lines

The red gladhand connects the trailer’s emergency air-supply line to the truck. That air fills the trailer’s reservoir and releases its spring brakes; if the…

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Neoplatonists argued that evil is just a lack of goodness
Myths & mysteries

Neoplatonists argued that evil is just a lack of goodness

Like darkness without light, evil, in their view, had no independent existence; it was simply farthest from the ultimate spiritual source.

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