The world is more interesting than you think.
Unexpected facts, big ideas, and little discoveries. Find something that sparks your curiosity today.
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A fourth cone type could reveal colors others cannot separate
Most human color vision compares signals from three types of cone cell. Some women have the genetic potential for a fourth, and researchers have identified…
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Zeppelin hangars were big enough for indoor rain
Their huge interiors could trap enough humidity for moisture to condense near the ceiling and fall as isolated showers on the ground crew below.
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Honey carries a special risk before a baby's first birthday
Honey can contain botulism spores that grow in an infant's intestine and produce a dangerous toxin. This is why the CDC advises against giving any honey to…
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Why British royals became the Windsors
With Britain at war with Germany, the royal family's Saxe-Coburg and Gotha name had become politically awkward. They replaced it with Windsor, trading a…
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Ticket scalpers now use algorithms to buy thousands of seats
A fan may be racing a countdown; a broker's software can buy thousands of seats in milliseconds. The broker then lists them again on the secondary market,…
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Burying ritual leftovers neutralizes charge
Practitioners say the soil absorbs residual energy from leftover wax and herbs; the buried remnants can surprise whoever digs in the garden.
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Why racing huskies can eat 10,000 calories a day
A sled dog has to power every stride and heat its body against freezing air, mile after mile. That takes an astonishing amount of fuel: the dogs are athletes…
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Predicting the literal weather using distant spheres
Some forecast rain or shine from celestial alignments rather than atmospheric pressure maps.
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Elizabeth I's smallpox nearly became a succession crisis
In 1562, the young queen became dangerously ill at Hampton Court. With no child and no settled succession, courtiers had to contemplate who would rule if she…
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Jim Bakker sold survival supplies through his TV ministry
His broadcasts promoted stored food alongside warnings about future crises. The audience was offered both a reason to worry and something to buy in response.…
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Base pairs actively hold your DNA together
Each DNA strand carries bases that pair with matching bases on the other strand: A pairs with T, and C with G. Their hydrogen bonds act like small…
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Early sleeper trains had one basin for everyone
Early sleeper cars had little room for plumbing, so passengers shared a basin instead of getting a private sink in every berth. One washstand served the whole…
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Interest rates hit zero and completely fail to stimulate
When people are worried about the future, a loan with no interest can still feel like a bad idea. The central bank can cut rates to zero and find that…
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Why Chicago reversed its river
A canal redirected the river away from Lake Michigan, Chicago’s drinking-water source, carrying sewage toward St. Louis instead.
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Psyche is a metal-rich asteroid, not a ready-made gold mine
Observations suggest a mixture of metal and rock rather than one solid exposed core. NASA's mission is designed to investigate what that unusual world is…
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Why BlackBerry was named after a fruit
The small, tightly packed black buttons on the keyboard reminded the marketing team of a blackberry’s bumpy surface.
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Time is more than what clocks measure
A clock moving fast or sitting in stronger gravity ticks at a different rate than another clock. GPS depends on extremely precise timing, so its system…
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Ruined a perfectly good regional brewery
After turning from her visions to brewing, Margery Kempe produced flat ale and her business failed; she blamed the failure on God punishing her vanity.
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Matte car finishes absorb light instead of reflecting it
Glossy paint sends light back in crisp reflections; matte texture breaks those reflections into a softer spread. The finish trades showroom sparkle for a…
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Air element profiles feature cloud emojis
Air-element profiles often use cloud emojis to signal an ethereal, mysterious identity.
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College tuition reflects more than the cost of a classroom
Teaching, buildings, services, financial aid, and public funding all affect what institutions need to charge. At public colleges, a smaller government…
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The Holy Roman emperor had a title bigger than his direct control
The empire contained a patchwork of territories with their own rulers, privileges, and institutions. Emperors were chosen through an electoral system, and…
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Why saying um keeps your turn
A pause can sound like you’ve finished; “um” sounds like you haven’t. It gives your conversation partner a cue to wait, buying you a moment to find the word…
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Overfitted models memorize answers instead of learning
An overfitted model can ace its training data by memorizing examples instead of learning patterns. It may then fail on new data it has never seen.
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