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
The TV that fried its own circuit boards
The Philco Predicta’s vacuum tubes ran hot enough to damage its cheap phenolic circuit boards, sometimes snapping components loose or breaking circuits. This…
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A small airport tug moves a bomber without lifting its weight
The aircraft's wheels support most of the load; the tug mainly has to overcome rolling resistance and start it moving. Low gearing multiplies wheel torque,…
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The Beatles’ TV debut coincided with a drop in US crime
The 1964 Ed Sullivan broadcast drew 73 million viewers, and major U.S. cities reported a dip in juvenile crime during the hour—though the timing alone doesn't…
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IBM built a storage machine that physically fetched magnetic strips
The IBM 2321 Data Cell kept data on individual strips stored in bins. Its mechanism selected a strip, brought it to a read/write drum, then returned it to…
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Istanbul's great observatory lasted only a few years
Taqi al-Din's observatory was completed in the 1570s and demolished on the sultan's orders in 1580. Court politics and opposition to the institution helped…
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The engineer who stopped network loops also wrote them a poem
Radia Perlman's Spanning Tree Protocol lets connected network bridges avoid circulating traffic endlessly around loops. She also explained the idea in a verse…
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The pirate queen made a sultan come to her
Sayyida al-Hurra governed the Moroccan port of Tetouan and directed privateering against Iberian shipping. When she married Sultan Ahmed al-Wattasi in 1541,…
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How Israel's banks manipulated their own shares
The banks were selling confidence in their own shares—and helping maintain the prices customers were being urged to pay. In 1983, the public tried to sell…
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Correcting low sodium too quickly can paralyze you
When sodium has been severely low for a while, brain cells adapt by adjusting the particles that help control their water balance. Raise sodium too quickly…
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Announcing your financial ruin ahead of schedule
Chile announced how much the peso would lose value, hoping people would plan around the schedule. Investors borrowed cheaper dollars to collect higher…
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Barter networks still need a way to track debt
In a Local Exchange Trading System, fixing a sink can earn credits you later spend on guitar lessons. You do not need the guitar teacher to want plumbing at…
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When three men claimed to be pope
During the Western Schism, rival church authorities recognized different popes. The Council of Constance helped end the crisis through a mixture of…
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The travel guides Nazi bombers used as targets
During the 1942 Baedeker Blitz, German raids targeted British cities with notable cultural sites, reportedly using Baedeker’s three-star ratings as a guide.
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The buses that ran on spinning flywheels
A motor spins a heavy flywheel, storing energy as rotation; later, the spinning wheel drives a generator that powers the bus. It’s a battery that prefers to…
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The first personal computer had no microprocessor
John Blankenbaker’s 1971 Kenbak-1 used dozens of discrete logic chips instead of a microprocessor and had just 256 bytes of memory. Users programmed it with…
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Madagascar's deadly test for suspected traitors
The tangena test made survival part of the verdict: suspects swallowed a poisonous nut with three pieces of chicken skin, and had to vomit up all three to be…
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Two radio messages collided before two jumbo jets did
At Tenerife in 1977, simultaneous radio transmissions obscured a crucial warning while fog hid a Pan Am jet still on the runway. The KLM aircraft began taking…
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Agnes Varda birthed the modern video essay
She pioneered essay films by mixing personal reflection and philosophy with documentary footage, decades before video essays became an internet genre.
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KLM once served gin in collectible miniature houses
Airline gifts were subject to value limits, so KLM served Bols genever in collectible Delft Blue miniature houses.
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When the CFA franc suddenly lost half its value
In January 1994, the CFA franc's official value against the French franc was cut by 50% in a coordinated devaluation supported by France and the IMF. Exports…
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At 96, Henry Heimlich helped a choking neighbor using his own technique
In 2016, the doctor intervened when a woman choked during dinner at his Cincinnati senior-living residence. The maneuver that bore his name had been promoted…
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ARPANET gave incompatible computers a common neighbor
Each host connected to an Interface Message Processor, a dedicated machine that handled traffic for the network. The 1822 specification defined how a host…
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Jack Chambers made a film by watching his backyard for a year
For Circle, he mounted a camera through a hole in his home's wall and recorded a few seconds each day. Changes in light, weather, and family life accumulate…
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Ken Burns makes a still photograph unfold like a scene
A slow pan can reveal one detail after another, while a zoom directs attention toward a face. Music, narration, and sound make those camera choices feel like…
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