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A little more wonder

This ancient word square reads backward as well as downward
The Sator Square arranges SATOR, AREPO, TENET, OPERA, and ROTAS in five rows. Read across or down and the same sequence appears; reverse direction and the…
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Paper index cards held all medical knowledge
Before medical information lived in searchable databases, Clarence Taber used hundreds of thousands of paper cards to build an encyclopedia. Cross-references…
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Victorians literally ate this crusty Welsh wooden bowl
The Nanteos Cup was a medieval Welsh drinking bowl that local legend identified as the Holy Grail and credited with healing powers. Victorian pilgrims…
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A rare side effect stopped America's 1976 flu campaign
Surveillance detected an increased risk of Guillain–Barré syndrome after that year's swine-flu vaccine—about one additional case per 100,000 recipients. The…
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Marco Polo told of a princess who wrestled suitors for horses
His account of Khutulun describes challengers wagering horses for the chance to marry her. In that telling, victories enriched her herd instead of delivering…
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Officials hid a deadly dam disaster with fake crop reports
Local officials were judged against Mao's agricultural quotas, so admitting that crops had been destroyed could look like a failure. After the 1975 Banqiao…
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The bleach drink sold as a miracle cure
When acid is added to sodium chlorite, it produces chlorine dioxide, a harsh chemical that can injure tissue rather than treat disease. Drinking the product…
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Sailors wore gold earrings to pay for their funerals
In the 1800s, some sailors wore gold hoops so the jewelry could help pay for a proper burial if their bodies washed ashore after a dangerous voyage around…
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Single lane bridge ended island isolation
The island served as Portuguese East Africa’s colonial capital for more than four centuries, until a two-mile, single-lane bridge linked it to the mainland in…
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High interest rates actually make goods cost more
The same rate hike meant to cool prices can raise a shop’s cost of restocking. Nineteenth-century economist Thomas Tooke argued that merchants borrowing for…
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Saigon's famous rooftop escape wasn't at the embassy
The helicopter in Hubert van Es's 1975 photograph was collecting evacuees from 22 Gia Long Street, an apartment building used by CIA personnel. The line of…
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The teenager who shook up New York’s avant-garde
At 17, Barbara Rubin made an explicit, double-projected underground film that drew Andy Warhol, Bob Dylan, and the Velvet Underground into her orbit in 1963.…
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Before VR, 25 people could share a mechanical world tour
A Kaiserpanorama seated viewers around a wooden cabinet fitted with pairs of eyepieces. Stereoscopic photographs advanced past them, making distant places…
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He threaded a tube into his own beating heart
Werner Forssmann threaded a two-foot catheter through a vein in his own arm into his right atrium, then walked to the X-ray department to photograph it. He…
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The travel guide that told tourists to sleep in bathtubs
Arthur Frommer's 1957 guide, Europe on 5 Dollars a Day, advised travelers to stay in cheap pensions, forgo private bathrooms, and even rent bathtubs to sleep…
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The fake Picasso story Orson Welles told
In his 1973 film F for Fake, Orson Welles closes with an entirely fabricated story about Picasso, using a documentary frame to blur fact and invention.
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Why someone threw a priceless shield into the Thames
The Battersea Shield was likely a votive offering to river gods, not discarded armor: its bronze and red-glass decoration was too elaborate for practical use.…
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A velomobile puts a streamlined shell around a pedal-powered rider
The enclosure lets air flow around the vehicle more smoothly than around an exposed rider, reducing drag at speed. It also adds weight and changes how the…
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An early railway tested a sail-powered railcar
Evan Thomas built the Aeolus for the Baltimore and Ohio Railroad's early experiments. A sail provided the force while rails guided the vehicle, so it could…
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The computer experiment that made chaos repeat itself
A computer calculation tracked vibrations in a chain of linked particles. The researchers expected energy to spread among the different patterns of motion and…
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How flashing lights made bullets look frozen
A strobe flash is so brief that a moving bullet travels only a tiny distance while it is lit, so the camera records a sharp slice instead of a blur.…
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A screening of L'Âge d'Or ended in ink and smashed artworks
In December 1930, right-wing groups attacked a Paris showing of Luis Buñuel's film, throwing ink at the screen and wrecking the accompanying surrealist…
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When physicists thought atoms were smoke rings
Kelvin’s fluid-ring atom theory went nowhere as an explanation of matter. But treating each atom as a different kind of knot gave mathematicians a fresh…
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The Nazi exhibition that drew the bigger crowd
The 1937 'Degenerate Art' show crammed modern artworks together with mocking slogans. More than two million visitors came to its Munich run, compared with…
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