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
Newton put a needle behind his own eye
Newton wanted to learn how the eye perceived light, so he pressed a blunt needle between his eye and the surrounding bone until colored rings appeared. He…
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Pittsburgh puts the side dishes inside the sandwich
At Primanti Bros., fries and coleslaw share the bread with the main filling. The slaw adds crunch and acidity while the fries provide the starchy side.…
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Clue once had three different endings
Different theaters received reels with different culprits, so audiences got one of three endings. The confusing gimmick hurt the film at the box office,…
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Direct sunlight exposure triggers systemic allergic reactions
Sometimes UV light changes a substance in the skin enough for the immune system to recognize it as a threat. The resulting allergic reaction usually appears…
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Tuk-tuk drivers steer enclosed cabins using handlebars
The handlebars connect to the front wheel through a steering column, just like a two-wheeler’s controls. The driver gets a roof and walls, but the steering…
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Why evolution can demand endless improvement
A species can evolve just to stay where it is: if its competitors also adapt, standing still means falling behind. The arms race keeps moving even when nobody…
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Maintained an incredibly iconic afro hairstyle
Sathya Sai Baba refused to comb down his gravity-defying afro, which became a globally recognized personal trademark.
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Sound waves move energy without transporting matter
A sound wave makes nearby air molecules jiggle back and forth; each one nudges the next, passing the disturbance onward. The energy travels across the room…
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King Charles V of France wasted massive amounts of taxpayer money to build an exclusive college just for astrologers
The academy, founded in 1371, was devoted to studying star charts. It did little to halt English advances in the Hundred Years’ War.
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Constantly searching for better deals costs you literal time
The discount is only three dollars; the round trip burns gas and time. By the time you reach the cheaper toaster, the bargain may already be gone.
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Black Flag gave its pirate crew a working soundtrack
In Assassin's Creed IV, sailors sing sea shanties while you travel by ship, and collecting song sheets expands the repertoire. Repeated voyages gain a…
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Bessel measured the exact physical distance to a star
Hold up a finger and look at it first with one eye, then the other: it seems to jump against the background. Earth’s orbit gives astronomers a much larger…
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Angkor Wat is designed to be strictly perfectly symmetrical
The temple complex is organized around a central axis, with mirrored halves that give its layout a striking balance.
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Early fiber optic cables were made of spun glass
Nineteenth-century physicists showed that light could follow a curved stream of water or glass instead of traveling only in a straight line. That…
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Giving literal souls to software programs and algorithms
Technological animism attributes spiritual significance or autonomy to computer programs. Some adherents interpret a chatbot’s surprisingly deep answer as…
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Your furniture's shine may come from insects
Shellac is made from resin secreted by lac insects on tree branches. Once collected and refined, it can be dissolved in alcohol and applied to wood as a…
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The oldest surviving Earth globe leaves out the Americas
Martin Behaim's globe was made in Nuremberg in 1492, before news of Columbus's voyage reshaped European maps. Europe and Asia face across a world with the…
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Bob Ross hated the perm that made him famous
He got a perm to avoid frequent haircuts, but once his afro became part of his TV image, his contract required him to keep it—even though he hated it.
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The first supermarket UPC scan was a pack of chewing gum
In 1974, a Wrigley's gum package passed over a scanner at a Marsh supermarket in Troy, Ohio. The barcode identified the item so a computer could retrieve its…
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A freight train can need a mile to stop
A long freight train carries enormous momentum, while steel wheels have limited grip on steel rails. Brakes must shed that energy without simply locking the…
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Editing can plant a clue earlier than it was discovered
Once a film's ending takes shape, editors can emphasize an earlier glance, object, or line so it prepares the audience for what follows. Additional filming…
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First house represents literal physical bodies and looks
Astrologers associate the first house with outward appearance and first impressions, including features such as your hair and facial structure.
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Original zodiac symbols are actually just a plagiarized ancient Sumerian agricultural season calendar
In ancient Mesopotamia, zodiac signs had practical ties to seasonal cycles: the bull was associated with plowing, while the water bearer was linked to the…
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Digital filters overlay geometric meshes onto human faces
The filter maps a 3D mesh onto facial features, then alters the geometry to reshape features such as the jaw.
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