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
How blindness can turn the visual cortex toward sound
When sight is unavailable, the brain can recruit parts of the visual cortex to help process sound. A click or echo can become useful information about where…
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The castle built to seal a supposed gateway to hell
Houska Castle in the Czech Republic is surrounded by stories about a pit leading to hell. In the legend, its chapel was built over the opening to contain what…
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Ancient Norse warriors eagerly sought out highly aggressive berserker states by consuming specific psychedelic mushrooms.
Some historians have proposed that berserkers took Amanita muscaria before battle, inducing a hallucinogenic frenzy that may have dulled their fear and sense…
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Dunhuang has traffic lights for camels
A camel symbol tells riders when a crossing is clear, turning a busy road into something a whole caravan can read at a glance. The traffic light has upgraded…
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Your sweat can slowly corrode metal
As sweat dries, it can leave dissolved salts and acidic compounds behind on metal. Repeated exposure may corrode sensitive jewelry or instrument parts—a slow…
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Popeye gave spinach a superhero sales pitch
In a 1932 strip, Popeye praised spinach for its vitamin A. The cartoon converted nutrition into an instantly visible transformation: eat the greens, gain the…
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Why supermarket scanners use synthetic sapphire
Because synthetic sapphire is transparent and highly scratch-resistant, it protects the scanners’ optical components from constant contact with cans and boxes.
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Prominent historical authors genuinely believed the planet contained a hollow subterranean world filled with giants.
The Victorian-era theory imagined openings at the poles leading to a lush, illuminated world inside Earth, populated by giants and alien civilizations.
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Extreme ironing takes a household chore somewhere absurd
Participants bring an ironing board and iron into settings such as mountains or climbing routes, then document the result. The sport's defining joke is the…
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The bizarre sport where opponents wrestle with toes
In toe wrestling, competitors hook their big toes together and try to force the other person’s foot down, usually across a small board. It turns a body part…
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A Sateré-Mawé initiation uses gloves containing stinging ants
Young participants in the Amazonian community place their hands into gloves woven with bullet ants. The painful ritual has a social meaning as an initiation,…
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Brilliant military strategies of the Mongol empire successfully conquered massive territories on horseback.
Mongol commanders made speed count by combining intelligence, coordinated cavalry, and feigned retreats that could turn pursuit into a trap. Subutai could…
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Competitive dog grooming turns poodles into dragons
At competitive grooming shows, a poodle’s coat becomes a sculpting material. Groomers trim and dye it into elaborate shapes—including dragons—because the…
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How a mirror can ease phantom-limb pain
The brain still has movement and body maps for a limb that has been amputated, but it cannot see that limb. A mirror places the reflection of the remaining…
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The James Bond theme began as a song about sneezing
The melody was first composed for a theatrical comedy about a man whose sneezes changed reality.
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The sport where teenagers gallop on hobby horses
A hobby horse is a toy, but the sport asks for real athletic timing: riders gallop, jump obstacles, and perform routines while guiding it. Shared make-believe…
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Why millions watch people chew loudly on camera
Those loud chewing videos offer a controlled dose of sounds that can trigger ASMR for some people: a relaxing, sometimes tingly response to close, repetitive…
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London once had a railway just for mail
Mail Rail sent small electric trains through narrow tunnels beneath the city, moving post between sorting offices without sharing the road with carts and…
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Silent-film speed could be changed twice
A camera cranked slowly recorded fewer frames of an action; projecting those frames faster made the action race past. Projection speed could change the effect…
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Medieval scribes left evidence of a very physical job
Some manuscript notes and colophons complain about tired hands, aching bodies, or the relief of finishing. Copying a book meant holding posture and repeating…
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The men who dug human waste from cesspits
A full cesspit was a public-health problem, so men hauled human waste out by hand and carried it away, often to be used as fertilizer. The job made an…
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The fish that shoots insects out of trees
An archerfish squeezes its gill covers to fire a thin jet of water, knocking insects or spiders off low branches. But the fish has to aim past an optical…
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When doctors treated illness with hungry leeches
When doctors believed illness came from an imbalance of bodily fluids, drawing blood seemed like a way to restore balance. Hungry leeches offered a living…
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How ancient Rome fed hundreds of thousands for free
Egyptian grain fed Rome’s free bread distribution, which helped keep the city’s poorest residents from going hungry—and from turning hunger into a political…
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