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
Pool noodles began as construction materials
Foam pipe insulation keeps pipes from losing heat; its light, air-filled structure also floats. Stretch it into a long tube and the job description changes…
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Why some adults still sleep with the lights on
A dark room leaves corners and shadows open to interpretation. If your mind is already alert to possible danger, it can turn an unseen coat or creak into a…
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Why crab walking makes your arms burn
Your arms aren’t just along for the crab walk—they’re carrying your upper body while your shoulders stabilize every sideways shuffle. It’s less a stroll than…
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Traveler checks are entirely dead cardboard
The awkward part is that traveler’s checks still exist: some banks offer them. But a cashier faced with one today may be puzzled, leaving you to explain a…
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Bear Grylls' wilderness show included indoor nights
In 2007, Channel 4 confirmed that Grylls had used indoor accommodation on at least two occasions when the program suggested a night in the wild. The…
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Why tea leaves were kept under lock and key
Tea cost enough that households locked it in metal caddies to keep hired help from taking a pinch. The tea chest was less pantry than household security system.
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Seeing an exact duplicate of yourself
Encountering a perfect lookalike is supposedly an omen of imminent doom. In reality, there are eight billion people on the planet; someone is bound to have…
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Why Sonic's villain keeps escaping on foot
The joke is the mismatch: Sonic is billed as the fastest living thing, but the round-bodied villain somehow jogs away after each encounter.
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Selfie sticks are aggressively frowned upon
A long selfie stick can hit people in a crowded walkway, which is why many locations discourage them.
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Big Brother cameras can track contestants on rails
Wall-mounted rails let cameras move automatically, using motion and heat to track contestants and reduce the need for camera operators.
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Mini foot trampolines reliably cause sprained ankles
The elastic surface rebounds under the foot, adding a springy shove just as the ankle tries to steady the landing. It’s a small trampoline with a big opinion…
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Urination demands muscular cooperation
To empty your bladder, its wall has to squeeze while the sphincters below it loosen. If the squeeze and release do not happen together, urine can stay trapped…
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Dating-show contestants spend days alone in hotel rooms
Producers keep contestants apart to prevent them from meeting or bonding before filming, leaving them alone in plain hotel rooms without internet or TV for…
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Aeroponics grows plants with their roots in midair
The roots hang in a dark chamber and receive a fine mist of water and fertilizer, using far less water than traditional farming.
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Scientists made ordinary plants glow
Researchers have engineered plants to glow by adding bioluminescent genes from fireflies and mushrooms. The modified leaves emit a faint light in the dark.
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Garbage collection functions as a natural monopoly
If several trash companies serve the same block, each may send its own truck down the same street. One provider can avoid that pileup of duplicate routes,…
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Divorce proceedings destroy immense household wealth
A divorce can turn one set of household expenses into two: two homes need support, and legal or mediation costs pile on. The money is divided, but some of it…
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Why chemotherapy also attacks healthy cells
Many chemotherapy drugs target rapidly dividing cells, so they can also damage healthy cells that renew quickly, including hair follicles and the digestive…
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Why bulk pistachios can catch fire on their own
Oil-rich kernels can trap heat when packed tightly in bulk storage. If the heat builds faster than it escapes, the pistachios can ignite without an outside…
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Zinc oxide physically blocks solar radiation
Zinc oxide forms a layer on the skin that helps block UV radiation rather than being absorbed like some sunscreen ingredients.
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A bladder can stretch until it struggles to empty
Chronic urinary retention can leave the bladder overfull and damage its muscle, making it harder to push urine out. That is a medical emptying problem, not a…
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Why sadness can linger far longer than surprise
A surprising event can be explained in a moment; a loss keeps mattering after the first shock. Sadness involves repeatedly processing what changed and what it…
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Piggyback has nothing to do with pigs
The phrase began as “pick-a-back”: carrying something on someone’s back. As the sound shifted, “pick” turned into “pig,” leaving the animals with an…
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The leaf that turns Mario into a flying raccoon
A brown leaf gives Mario raccoon ears and a tail; wagging the tail lets him hover over pits.
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