The world is more interesting than you think.
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In some reptiles, nest temperature picks sex
In some reptiles, the warmth around an egg during a particular stage of development helps shape whether the embryo becomes male or female. A small change in…
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Why cell towers look like terrible trees
To meet local aesthetic rules, telecom companies sometimes add artificial branches to cell towers, disguising steel antennas as trees. The camouflage can make…
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A vending machine can identify a coin by its electrical fingerprint
Electronic validators use inductive sensors to measure how a passing coin affects an electromagnetic field. Material and dimensions produce a pattern the…
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Why mushrooms are closer to animals than plants
A mushroom may look like a plant, but it doesn’t use sunlight to make its food; fungi absorb nutrients from their surroundings. Their cell walls contain…
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Asking for a ride on a Nevada roadway is strictly illegal
Nevada law prohibits hitchhiking on roadways, so asking passing drivers for a ride can violate state law.
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A Nobel Prize once honored an operation that cut brain connections
Egas Moniz shared the 1949 medicine prize for work on prefrontal leucotomy, an early form of lobotomy. It was promoted as a treatment for severe mental…
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Diplomats' parking tickets became a test of corruption
Researchers studied unpaid tickets issued to diplomats in New York, where immunity made enforcement unusually weak. Officials from countries with higher…
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Open-source code is buried in an Arctic coal mine
GitHub's February 2020 snapshot preserved 21 terabytes of public repository data on 186 reels of film in an Arctic vault. The reels include human-readable…
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Why Hollywood keeps making sequels
Sequels offer studios a safer bet than unfamiliar stories: the franchise already has an audience, while a new concept is harder to predict.
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Frozen atmospheric water crystals look mildly unique
Snow looks white because sunlight keeps bouncing off ice crystals and the air pockets between them. Those scattered colors mix together before they reach your…
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Dead pixels on screens just exist to mock you
That tiny flaw can keep drawing your eye, turning an otherwise perfect picture into a game of “find the pixel.”
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What refined sugar sets off inside your body
Your body can use sugar for energy, but a long-term pattern of excess can contribute to problems such as insulin resistance and fatty liver. That’s the less…
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Judging paperbacks by their covers is standard practice
That influence is why publishers invest in eye-catching jackets and typography to attract readers.
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Your teeth grow a film you have to remove daily
Dental plaque is a community of microbes clinging to teeth. Some use sugars from food to make acids that attack enamel. Brushing disrupts that sticky film;…
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Green fabric screens replaced actual raw acting talent
Actors may stage a fight against tennis balls mounted on sticks, then perform against a green screen while visual effects create the scene around them.
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Modern trains are essentially giant metal snakes
Each car pivots on its own bogies, while flexible couplings let the line bend through curves. The cars follow one another like a metal snake, except this…
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Your garden may be growing in worm castings
Worms eat dead leaves and other decaying matter, then leave castings that return nutrients to the soil in forms plants can use. The crumbly material also…
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The IRS can know your wages before you file
US employers send wage information to the tax agency as well as to workers. Filing still asks the taxpayer to assemble a return, including details the agency…
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Why hiccups still have no reliable cure
A hiccup is a reflex: the diaphragm contracts suddenly, then the opening between the vocal cords snaps shut, making the familiar sound. Tricks such as…
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Why a bicycle stays upright while you ride
A moving bike stays upright through constant small adjustments: the rider steers toward a lean, shifting the wheels beneath the body. Balance isn’t a magic…
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Why a short ferry ride can cost so much
The ferry must keep its vessel, crew and docks ready whether the trip lasts ten minutes or an hour. Those fixed costs get divided among the passengers on the…
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Latitude dictates your wardrobe choices
Closer to the equator, high humidity can make lighter clothing more comfortable.
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A visa fee can buy a decision without buying entry
An application fee commonly pays for processing, so refusal does not necessarily come with a refund. Even an issued visa can be subject to checks at the…
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Viking-age hair survives far less often than the tools for it
Archaeologists find combs and other grooming objects more readily than actual human hair, which rarely survives. The Swedish History Museum's collections…
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