The world is more interesting than you think.
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How Southwest Airlines turned fuel prices into an advantage
Southwest agreed in advance to pay set prices for fuel through hedging contracts. When oil prices shot up, those deals kept the airline from paying the new,…
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Why rollerball pens feel smooth but bleed through paper
Rollerballs use thin, water-based ink instead of the thick paste found in standard pens. The ink flows smoothly but can seep into paper fibers and show…
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Wikipedia's annual guilt trip
You can visit Wikipedia for one obscure Roman emperor and still meet its founder asking for donations. Each winter, the site’s fundraising banners find…
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Why a rustle can sound like a threat
Your ears catch a sound before they know what made it. When a rustle is hard to identify, the mind leans toward a possible threat because checking a harmless…
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Sand that comes out of water completely dry
A water-repelling coating stops water from soaking into the grains. Instead, a thin film of air clings to them underwater, so the sand comes back out dry and…
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Windows' browser shortcut became an antitrust battleground
Microsoft's 2002 U.S. antitrust judgment required ways to hide access to certain bundled Microsoft programs and let competing software become the default.…
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Why Asteroids is made of perfect polygons
Asteroids uses a vector display rather than pixels: each rock is drawn as lines connecting exact geometric points.
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Your inner voice helps keep a number from disappearing
Repeating a phone number silently refreshes a short-lived store of verbal information. This rehearsal system is often called the phonological loop. Stop…
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Intellectual biorhythms last exactly 33 days
In biorhythm theory, the intellectual cycle lasts 33 days, with supposed high and low phases that affect mental performance.
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The keyboards designed to erase your visual crutch
Blank keycaps remove the visual prompt, forcing typists to rely on muscle memory as they practice.
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Most conversational laughter follows nothing funny
Most laughter in conversation isn’t a response to a punchline. People laugh after ordinary remarks to signal friendliness, smooth the handoff between…
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Stalin sort gets an ordered list by deleting the dissenters
The joke algorithm scans a sequence and discards values that break the chosen order. What survives is sorted, but information has disappeared. It exposes a…
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How Concorde passengers watched the sun rise in the west
Concorde flew west faster than the ground turned beneath it. As Earth spun east, the supersonic jet raced west even faster, making the sun appear to slide…
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Paramagnetic substances exhibit temporary magnetism
A paramagnetic material becomes weakly magnetic only while an outside magnetic field is present. The field nudges some tiny magnetic moments into alignment,…
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Beelzebub strictly translates to lord of the high manor
Beelzebub is commonly translated as “Lord of the Flies,” not “lord of the high manor.”
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A paper game map can make exploration feel like an expedition
Skyrim's physical map gives players a view of the province outside the screen. Looking between that object and the world on the monitor turns navigation into…
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The tool bag that escaped into orbit
During a 2008 spacewalk, astronaut Heidemarie Stefanyshyn-Piper lost a tool bag outside the International Space Station. It kept circling Earth as a separate…
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Why gamepads rumble in surprisingly complex ways
Some gamepads pair a heavy, slower motor with a lighter, faster one. Running them at different speeds produces a range of rumble patterns, from gentle taps to…
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The Hundred Years' War lasted 116 years
English kings claimed the French throne through dynastic ties, and both crowns pressed that claim across generations. The fighting came in waves, but the name…
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Why swearing feels safer in another language
Swear words learned early are tied to strong emotional reactions and social rules. In another language, the same kind of word may have less history in your…
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Why economists call some goods 'inferior'
The term describes demand, not quality: people buy less of an inferior good as their income rises. A commuter who switches from the bus to a car illustrates…
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Eating fast can make you swallow the wrong extra ingredient: air
More swallowed air can mean belching, pressure, and bloating after a meal. The discomfort isn't always just the amount of food in the stomach. How the meal…
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I Spy appeared in print as early as 1928
The game was documented as a free way to pass the time, long before it became a familiar road-trip distraction for parents.
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Moths that drink sleeping birds’ tears
Some Madagascar moths sip tears from sleeping birds to get sodium, a mineral that can be scarce in their diet. Their long, narrow mouthparts reach the salty…
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