The world is more interesting than you think.
Unexpected facts, big ideas, and little discoveries. Find something that sparks your curiosity today.
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Thallium reliably burns with a distinct bright green flame
Heat energizes electrons in thallium atoms. When those electrons settle back to lower-energy states, they release light at wavelengths our eyes see as green,…
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Judging the future by cat behavior
In felidomancy, a cat's sneeze supposedly foretells a wedding, while face-washing means company is on the way.
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Hydroponic plants grow entirely without soil
Hydroponic crops grow in nutrient-rich water instead of soil. Commercial systems can increase yields and reduce pests, though they don’t guarantee flawless or…
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Rhode Island accidentally advertised Iceland
The video’s accidental star was a skateboarder in Reykjavik. A multimillion-dollar tourism campaign for Rhode Island ended up giving Iceland a bit of screen…
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Chlorine gas actively acts as a devastating chemical weapon
Chlorine’s effects depend on where it meets water. In a pool, carefully controlled amounts help disinfect; as a gas in the lungs, it reacts with moisture in…
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A disgusted face changes how air enters your nose
In experiments comparing facial expressions, fear and disgust had opposing effects on sensory intake. Fear widened the eyes and increased nasal airflow;…
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Unscripted sets often trap participants in a single house
Keeping a cast in one rented mansion cuts the cost and hassle of transporting people and securing permits at multiple locations. The close quarters can also…
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Dealing playing cards to read the room
Cartomancers interpret standard playing cards as omens; a high card might be read as a sign of coming wealth.
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Even a grimace helped in one needle-pain experiment
UC Irvine researchers used chopsticks to help participants hold different facial expressions during an injection. Those making a broad smile or a grimace…
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Scientists once thought swallows hibernated underwater
Before scientists understood bird migration, swallows vanished in autumn and reappeared in spring. Some scholars concluded they must be sleeping in pond mud—a…
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Reality dating can cost contestants thousands
Many contestants get no wardrobe budget, so they may spend thousands of their own dollars on outfits for the cameras.
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Barium swallows coat intestines for clear x rays
The chalky barium drink coats the esophagus so it shows up on X-rays, helping doctors spot narrowing such as a stricture. Barium sulfate isn't absorbed into…
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Energy drink sponsors mandate logos always face the camera
Sponsored athletes may be instructed to hold a drink so its logo faces the camera during an interview, keeping the brand visible.
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Tossing handfuls of dirt on the floor
Some divination practices interpret patterns made by scattering soil on a flat surface to answer questions, leaving the floor to be swept afterward.
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Can travel guides really be bought off
A hotel or restaurant may give a travel writer a free trip—or a kickback—while that writer is reviewing it. The perk can put the supposedly objective…
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Why opera rarely pays for itself
The curtain can rise on a production whose sets and orchestra cost more than the tickets bring in. The opera company still has to finance the gap.
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Never mix bleach and ammonia
Bleach and ammonia can react to form chloramines, gases that irritate your eyes and lungs. The danger is the vapor the reaction creates, so don’t combine the…
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Bakelite hardens once—and never melts again
Once Bakelite sets, links between its polymer chains lock it into a network. Think of wax as separate pieces that can slip past one another when warm, and…
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Tom Nook's home loans let you repay on your own timetable
In Animal Crossing, the loan carries no interest or repayment deadline. Selling gathered items such as fruit and shells earns the bells used to pay it down.…
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Your baby teeth start forming before birth
A baby’s primary teeth begin forming in the jaw months before birth, tucked beneath the gums. Their crowns stay hidden until later, when the teeth push up…
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Why surrogacy comes with a steep price
The bill covers more than nine months of pregnancy: intended parents may also pay substantial compensation and legal fees. Those costs make surrogacy far more…
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A cloned pet won't remember the original
A clone shares its donor's genes, not its memories: its brain develops through its own experiences, so its personality won't be a copy either.
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Reading fireplace soot for clues
Some forms of soot-reading treat patterns left by a fire as clues to the future—though a dirty hearth may simply mean it’s time to clean the chimney.
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People once believed geese grew from driftwood
Barnacle geese disappeared for part of the year, while barnacles seemed to grow on driftwood. People joined those two mysteries into one origin story: geese…
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