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
Polyethylene completely rules the entire plastic industry
Polyethylene chains can be arranged in ways that make the material either flexible or rigid. Branches get in the way of close packing, tending to make the…
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Medical professionals in commercials are paid spokesmen
Commercials may put paid spokespeople in lab coats rather than feature practicing medical professionals. The look of medical authority can make a company’s…
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El Salvador claimed to be a short commute country
The slogan promised that visitors could drive across the entire country in under an hour. El Salvador was selling a very compact itinerary.
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Boron makes silly putty bounce
Boron compounds act like loose links between Silly Putty’s long polymer chains. Pull slowly and the chains have time to slide past one another; hit it quickly…
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Finding deep meaning in passing clouds
Nephomancers interpret cumulus clouds as signs and use their shapes to predict events—a form of divination built around the clouds people daydream about.
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Curlers can keep working on a shot after releasing it
Sweeping changes friction along the stone's path, helping it travel farther and affecting how the shot develops. The players are modifying the surface rather…
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Why tin can crumble in the cold
In the cold, tin can slowly rearrange its atoms into a different crystal structure called gray tin. The new form is brittle and takes up more room, so it…
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Beach towels are sold at outrageous markups
Forgot your towel? Beach shops can charge premium prices for thin, scratchy replacements.
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The shine on some candies comes from palm leaves
Carnauba wax is collected from Brazilian palm leaves and used as a thin glazing layer on some sweets. It helps keep pieces from sticking and gives them a…
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Lithium weighs barely half as much as the same volume of water
Its density is about 0.534 grams per cubic centimeter, the lowest of any metal. That lightness helps explain its appeal in alloys designed to reduce weight.…
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Medieval watermills put salmon migrations in the way of progress
A 2016 study linked Europe's early salmon decline to the spread of watermills, centuries before industrial pollution. Dams interrupted migration and changed…
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Throwing axes to find out the truth
An axe was thrown into the ground or balanced on a post; if it quivered or fell a certain way, the accused was deemed guilty.
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Historic swordplay depended on where your feet went
Period fencing manuals treat stepping as part of attacking and defending, not just a way to approach an opponent. Moving off the line can change which blade…
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Why a shorter urethra raises UTI risk
Bacteria that enter the urinary tract have to travel up the urethra to reach the bladder. A shorter urethra means a shorter route, which helps explain why…
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Zelda's sword beam can vanish after one hit
In games where sword beams require full health, even a little damage removes your ranged attack. Healing therefore restores more than a safety margin: it…
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The movie clue that can reveal a secret villain
Director Rian Johnson said Apple would not allow villains to use iPhones on camera under its product-placement arrangements. That turns a prop into a…
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Rounding cash transactions steals pennies
A country drops its tiniest coins, but cash registers still have to settle the bill. They round to the nearest remaining increment, turning tiny adjustments…
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Why average faces look more beautiful
A single face makes every unusual feature stand out. Blend many faces together and those quirks are softened, leaving a more typical-looking face—something…
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Almond farms rely on millions of traveling beehives
Almond growers need more bees than local populations can supply, so they pay to rent millions of commercial hives. The hives travel by truck across the…
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Lifting brides over the threshold avoided evil spirits
In old folklore, the doorway was a boundary where evil spirits waited to follow a bride inside. Carrying her over meant she never touched the threshold—an…
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Ureters forcefully push liquid downward
The ureters move urine with rhythmic waves of muscle contraction, squeezing it from each kidney toward the bladder. That means the trip depends on muscular…
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How brewed coffee becomes instant crystals
The brewed liquid is frozen, then placed in a vacuum, where the ice turns straight into vapor without melting. What's left is dry coffee crystals.
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Water dominates your saliva composition
Saliva is almost all water—about 99%—so it can spread across your mouth and keep tissues moist. The remaining 1% carries mucus and proteins for lubrication,…
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Yoshi's 'saddle' is officially a shell
Nintendo has described the red structure on his back as a shell, even though Mario uses it as a seat. Its changing shape across games helps explain the…
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