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
Thermal cameras detect heat radiating as infrared light
Warm objects emit infrared radiation, which the camera detects and translates into an image.
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Equatorial air density changes atmospheric lift
Hot equatorial air expands, leaving fewer air molecules packed into each breath of atmosphere. Wings get less to push against, so an aircraft needs more speed…
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Trivia tie-breakers rely on completely impossible guesses
Hosts may ask for an exact distance between obscure monuments, turning the final round into a guess rather than a test of trivia knowledge.
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Plyometric training turns a landing into the start of the next jump
A quick stretch followed by contraction uses the muscles and tendons as an active spring system. Soviet coach Yuri Verkhoshansky developed the influential…
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Fourth house strictly rules real estate
In astrology, it also covers home life and the feeling of sanctuary, not just the physical property.
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Opal consists of microscopic silica spheres packed with water
Opal’s color is built into its tiny structure. Regularly spaced silica spheres send light waves bouncing back together, strengthening some colors while…
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Dark Souls treasure chests can give themselves away by breathing
A mimic resembles a chest until you inspect the subtle movement—or open it and meet the teeth. The chain beside it provides another visual clue. A game about…
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EA hired people to protest the game it was selling
At E3 in 2009, staged religious protesters drew attention to Dante’s Inferno. The apparent backlash was part of the promotion, but real Christian commentators…
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Chicago water taxis bypass gridlock by using the local river
Water taxis use the Chicago River as a route while cars queue on the streets beside it. The boat skips the traffic jam by taking the one lane the cars cannot…
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Twenty-sided dice are perfectly mapped icosahedrons
Its 20 identical equilateral-triangle faces make it a regular icosahedron, the classic shape of a 20-sided die.
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How spoons could scrape Alcatraz walls
Salt air corroded the iron rebar inside Alcatraz's porous concrete, letting inmates scrape at their cell walls with stolen spoons.
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Advice columns were answering readers' worries in the 1690s
John Dunton's Athenian Mercury invited questions on matters ranging from religion to everyday life. A surviving 1691 issue even considers whether tobacco does…
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One long word lives on the keyboard's left side
On a standard QWERTY keyboard, 'stewardesses' uses only keys assigned to the left hand in touch typing. Twelve letters, and the right hand can sit out the…
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Why century years usually skip leap day
Earth takes about 365 days and nearly six extra hours to circle the Sun, so a leap day every four years slightly overcorrects. Skipping it in most century…
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Hiding and searching push people toward different places
In a virtual hide-and-seek experiment, people hiding objects favored different locations from people searching for them. Hiders tended to spread choices…
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The hidden business behind glowing hotel reviews
Some properties offer guests perks like free drinks for positive reviews, while others pay review farms to invent glowing praise.
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Exaltation dignity acts like a VIP guest pass
An exalted planet is treated like an honored guest in a sign: highly praised, though it doesn’t rule that sign.
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Caduceus snakes coil together harmoniously
The paired snakes are often read as a symbol of balance, though the caduceus is now widely used in medical settings.
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Group of Seven painted unforgiving wilderness
The Group of Seven left cozy domestic scenes behind and went into Canada’s cold, mosquito-filled woods to paint jagged rocks and twisted pines. The wilderness…
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Your granite countertop is slightly radioactive
A granite counter can be slightly radioactive because it may contain small amounts of uranium and thorium. In an intact slab, the radiation is generally low;…
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Why ostriches look like they bury their heads
They lower their heads to turn eggs in shallow dirt nests, which can look from a distance like they’re burying them.
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Mars acts as the cosmic gas pedal for impulsive acts
Astrologers associate Mars with action and aggression, treating it as a symbol of the urge to act before thinking.
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Moose are taller than you might expect
Moose can stand over six feet tall at the shoulder, making one crossing a dark road a daunting sight.
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Tofu emerged from ancient Chinese soybean processing
The traditional process turns soybeans into curds by mashing and boiling them, then coagulating the mixture into a soft white block.
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