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Used coffee grounds became fuel for a London-bus trial
Transport

Used coffee grounds became fuel for a London-bus trial

A 2017 project extracted oil from spent coffee grounds and used it as part of a blended diesel fuel. The waste had already given up the drink people wanted,…

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Why modern trucks are rolling data hubs
Transport

Why modern trucks are rolling data hubs

Modern trucks carry computers that track engine performance, braking, tire pressure, and location. Sensors feed that information into onboard systems, then…

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Ancient wells in Turkey were feared not as water sources but as doorways feeding straight into the underworld
Myths & mysteries

Ancient wells in Turkey were feared not as water sources but as doorways feeding straight into the underworld

Sunlight refracts through hexagonal ice crystals high in the atmosphere, creating bright optical effects that can look like a crown.

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History

From powdered wigs to dancing plagues, human history never lacked bizarre customs.

History wears costumes that can look absurd: giant powdered wigs tottering above solemn faces, or people dancing wildly in unison for reasons lost to time.…

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Psychology

Psychologists call it the ‘what-the-hell effect’: when someone slips on a goal, like eating one cookie on a diet, they feel doomed and binge the whole jar.

Ever eaten one cookie and thought, “Well, I’ve ruined the day—might as well eat the whole box”? That mental trap has a name: the *what-the-hell effect.* One…

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A fortune in crypto can become useless without its key
Economy

A fortune in crypto can become useless without its key

There’s no customer-service desk that can open a crypto wallet after its password disappears. During the boom, forgotten passwords left billions of dollars…

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Your best sleep hack might be boring: same bedtime, dark room, no phone glowing, and gentle morning light
Health

Your best sleep hack might be boring: same bedtime, dark room, no phone glowing, and gentle morning light

Your body clock uses regular timing cues to decide when to feel alert or sleepy. A steady sleep schedule reinforces that rhythm, darkness supports the…

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Tourists can now explore coral reefs by submarine
Transport

Tourists can now explore coral reefs by submarine

The submarine dives by letting water into ballast tanks, then rises when compressed air forces that water out. Sealed windows give tourists a view of the reef…

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When Indian villages turn into clouds of color
Travel

When Indian villages turn into clouds of color

Holi fills streets and courtyards with clouds of bright pink, green, yellow, and blue powder. The annual festival welcomes spring, as neighbors, friends, and…

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Battle royale genre continues mutating, adding monsters, crazy maps, and wild twists to survive attention
Games

Battle royale genre continues mutating, adding monsters, crazy maps, and wild twists to survive attention

Sea monsters and lava-filled islands are among the twists; developers keep changing matches to hold players’ attention when competing games are only a click…

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Twitch's payout leak showed how uneven online fame can be
Culture & entertainment

Twitch's payout leak showed how uneven online fame can be

The 2021 leak exposed reported payments to thousands of channels, drawing attention to the gap between leading streamers and the rest. Those figures covered…

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Just 20 minutes of light exercise can lift your mood better than caffeine, priming your brain with endorphins
Health

Just 20 minutes of light exercise can lift your mood better than caffeine, priming your brain with endorphins

During light exercise, the body can release endorphins, which act as messengers in the brain and can contribute to a better mood. Even a brief walk or dance…

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Lightning can make new chemicals from the air
Science

Lightning can make new chemicals from the air

Lightning’s heat gives nitrogen and oxygen in the air enough energy to react. The new compounds wash down in rain as nitrates, a form plants can use. A storm…

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Transport

World’s fastest boat isn’t a modern marvel but a decades-old design that skimmed above water like a skipping stone.

You might picture sleek new machines ruling speed records, but the fastest boat ever built still hails from decades past. Its trick wasn’t brute horsepower…

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Why alcohol and nicotine are worse together
Health

Why alcohol and nicotine are worse together

Alcohol can make nicotine bind more strongly, while nicotine may intensify alcohol-related organ damage. The two substances can therefore amplify each other’s…

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Villages in Mexico place shoes at graves so wandering souls walk home guided by worn soles instead of vanishing
Myths & mysteries

Villages in Mexico place shoes at graves so wandering souls walk home guided by worn soles instead of vanishing

In some Mexican villages, shoes left at graves are meant to guide wandering souls home. Their worn soles evoke the familiar paths the dead once walked through…

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Green economies create new money hacks: swapping clothes and sharing energy bills cut costs while aiding climate
Economy

Green economies create new money hacks: swapping clothes and sharing energy bills cut costs while aiding climate

At a clothing swap, someone else’s unwanted jacket can become your new wardrobe without a store sale. Sharing energy costs can also make renewable power…

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Why soldiers break step on bridges
Transport

Why soldiers break step on bridges

Marching in step makes many footfalls arrive together, sending repeated pushes through a bridge. If that rhythm excites the structure’s motion, the sway can…

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Why crisis can make people trust each other faster
Psychology

Why crisis can make people trust each other faster

When people face danger together, a shared crisis can make group boundaries feel suddenly important. Strangers start acting for one another because they see…

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Cross-cultural patterns reveal loneliness explodes in societies built on independence over tight communal bonds
Psychology

Cross-cultural patterns reveal loneliness explodes in societies built on independence over tight communal bonds

When a culture treats self-reliance as the ideal, people can end up managing problems privately that a tighter community might share. That makes support less…

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Prussian officers practiced war on a tabletop
History

Prussian officers practiced war on a tabletop

Kriegsspiel used maps, pieces, rules, and an umpire to model tactical decisions. The Prussian army adopted it in 1824 after a demonstration to its chief of…

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Tokyo has an aquarium that comes to the classroom
Transport

Tokyo has an aquarium that comes to the classroom

Tokyo Sea Life Park's mobile aquarium, Umikuru-go, brings living aquatic animals to schools and other educational settings. Instead of taking an entire group…

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The forgotten surgeon behind tools we still use
History

The forgotten surgeon behind tools we still use

The surgeon’s name faded, but his scalpels, forceps, and suturing needles didn’t: their designs still echo in modern surgical tools.

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Psychology

How you treat your own mistakes leaks into relationships: low self-esteem often creates cycles of overpleasing or withdrawing, where fear of rejection turns into…

The way you speak to yourself isn’t private—it echoes into your relationships. Imagine spilling a glass of water: some people laugh it off, but others spiral…

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