The world is more interesting than you think.
Unexpected facts, big ideas, and little discoveries. Find something that sparks your curiosity today.
A little more wonder
Putting footwear on tables brings bad luck
The practical concern is less supernatural: shoes can bring whatever grime they picked up outside onto a surface near your dinner.
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Edinburgh sells ghost stories beneath its streets
Tours lead visitors into the old vaults under South Bridge, where guides mix the setting's history with tales of hauntings. The stone chambers supply…
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The soy-root molecule that makes vegan burgers “bleed”
The “bleeding” effect in some vegan burgers comes from leghemoglobin, an iron-rich molecule found in soy plant root nodules. It is produced using fermented…
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Natural rubber consistently shatters when totally frozen
Rubber springs back because its long molecules can uncoil and shift when stretched. In enough cold, those chains become sluggish, so the rubber can no longer…
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Doom gave its hero a revenge story about a rabbit
The original Doom ends with the discovery that the marine's pet rabbit, Daisy, has been killed. After all the demons and carnage, the game makes the invasion…
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Tracking snake slithers for prophecy
Diviners watched how a snake wrapped around a stick or moved through grass to look for signs of what was to come. The practice called for someone willing to…
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Scratching an itchy nose means visitors
The superstition says an itchy nose means a visitor is coming; more ordinary causes include allergies or dust in the nostril.
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Animal Crossing lets a neighbor ask permission to leave
In New Horizons, a villager considering a move can ask the player whether to stay. That makes departure a conversation rather than a guaranteed result of…
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When friendly dogs trigger panic
To someone afraid of dogs, a friendly approach can still feel like a threat rushing closer. Fear learning links cues such as barking, size, or sudden movement…
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Why “But wait, there’s more” makes you buy
The phrase makes an offer sound bigger just as you’re deciding, nudging you to reconsider a purchase you might otherwise pass up.
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A slug spends energy making the road it slides on
A 1980 study found that a slug's high cost of crawling was largely attributable to producing mucus. The animal was paying for the material that connected its…
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Dry cleaning is still washing your clothes
“Dry” cleaning uses liquid solvent instead of water, often perchloroethylene, to remove oils without shrinking delicate fabrics. The solvent cleans the…
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What really makes a match ignite
Friction against the striking surface converts a small amount of red phosphorus there into highly reactive white phosphorus, which ignites and lights the…
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High pitched noises mean people are gossiping
A superstition links ringing ears to someone gossiping about you, though the sensation can simply be tinnitus.
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Dropping scissors guarantees unfaithful lovers
According to the superstition, scissors that fall and stick upright in the floor signal an unfaithful partner. At minimum, they pose a hazard to the floor—and…
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Why basketball rims break away
Dunking and hanging on the rim could make it snap, sometimes shattering the tempered-glass backboard. Breakaway rims bend under pressure to help prevent that…
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The bladder valve you never have to control
A ring of muscle at the bladder's outlet stays tightened automatically, so urine stays in without you having to think about it. When it's time to pee, the…
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Fish ammonia feeds plants in aquaponic systems
Bacteria convert toxic ammonia in fish waste into nitrates, which are pumped to plant beds as nutrients. The fish supply fertilizer without synthetic inputs.
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Menstrual waste consists of discarded lining
If pregnancy does not occur, the uterus sheds the lining it had built to support a fertilized egg. That lining leaves through the vagina as menstrual flow, so…
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Baby-cut carrots are grown-ups with a makeover
Those smooth little pieces are cut and peeled from larger carrots. Producers even grow long, slender varieties suited to cutting into several snack-size…
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Some Ulas siblings walked comfortably on all fours
For some Ulas siblings, walking on two legs made balance difficult, while moving on hands and feet felt steadier. Their unusual gait shows how the body…
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Bromine remains completely liquid at normal room temperatures
Bromine is one of just two elements that are liquid at ordinary room temperature; the other is mercury. Its reddish-brown liquid gives off pungent fumes, so…
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A splash of acetone can make Styrofoam collapse
Acetone dissolves the plastic walls of Styrofoam rather than melting them with heat. Those walls hold pockets of air; once they dissolve, the air escapes and…
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Dice once needed stamps to prove taxes were paid
The tax had to be stamped right onto each die. That tiny official mark became valuable enough that people forged it widely.
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