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
TV heart monitors are often complete nonsense
Many hospital monitors shown on TV play prerecorded loops, with blood pressures and heart rhythms that can be medically impossible.
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Kapre is a giant tree dweller smoking huge cigars
In Philippine folklore, the kapre is a large, hairy tree-dwelling being said to smoke oversized cigars; the smell of tobacco is sometimes associated with its…
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Mechanical advantage makes lifting heavy loads feel lighter
A pulley makes a heavy load easier to lift by sharing its weight across several sections of rope. You pull with less force, but you have to pull more rope to…
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Subnautica permanently strands players on a submerged planet
After their spaceship crashes, players are stranded on an ocean planet where dangerous sea creatures threaten their tiny submarine.
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Blue light can make fresh food look wrong
A strawberry under blue light can lose the warm red your eyes expect; meat can look gray and uninviting. The light changes the colors reaching your eyes, and…
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Your eyes have a built-in ultraviolet filter
Your cornea and natural lens absorb much of the ultraviolet light entering your eye, keeping most of it from reaching the retina. If the lens is missing, some…
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Kitsune are foxes that grow extra tails with age
In Japanese folklore, kitsune gain more tails as they age, along with greater wisdom.
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High dynamic range blends bright and dark photos together
Your camera takes three shots at different exposures, then combines the best-lit parts so bright skies and dark shadows can both remain visible.
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Spacecraft cargo can become part of a radiation shelter
NASA designed Orion's emergency shelter so astronauts can rearrange onboard supplies around themselves during a solar radiation event. Hydrogen-rich…
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A submarine can see above water without an optical tube
Virginia-class submarines use photonics masts with cameras linked to processing equipment and displays inside. The view travels electronically rather than…
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Even a celebrity roast can have a no-go zone
Before Tom Brady's 2024 roast, Nikki Glaser said the comedians agreed not to target his children. That didn't mean Brady knew the jokes in advance. The…
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Kraken is a legendary sea monster dragging ships under
Kraken is a legendary sea monster dragging ships under. Nordic fishermen feared a gigantic cephalopod rising from the depths and dragging their wooden vessels…
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Night vision goggles amplify ambient light into a green glow
They need at least a little ambient light, such as starlight or distant streetlights; a vacuum tube amplifies it and displays the image on a green phosphor…
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Nuno sa punso is a grumpy dwarf in a termite mound
In Philippine folklore, a nuno sa punso lives in a mound and may curse anyone who disturbs it—so watch where you step.
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Punctuation marks were popularized by early paper printers
As printing spread, printers needed readers to navigate identical copies, so they standardized marks for pauses and sentence endings. Punctuation turned dense…
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Hovercrafts can slide backward on hills
A hovercraft rides on a cushion of air, so its hull has little grip on the ground. Its propeller pushes it forward, but on a slope gravity wins when that…
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TV cooking judges may eat cold steak
Because filming beauty shots takes so long, judges may eat steak that has been sitting at room temperature for over an hour.
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Before golf tees, players built tiny sand mounds
Before tees, boxes of wet sand let golfers shape a small mound to lift the ball for a drive. The first swing began with muddy hands.
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Freezing cold air physically shrinks the respiratory airway
In reactive airways, cold air can make the muscles around the breathing tubes tighten. The narrowed passage leaves less room for air, which can make breathing…
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Why digital bodies flop without twisting apart
Game physics treats limbs as solid cylinders joined by virtual springs with limited rotation. Those constraints let a character tumble dramatically without…
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Film festivals are less glamorous than they look
Film festivals can mean grueling schedules, bad coffee, and frantic script pitches to exhausted executives in crowded hotel lobbies.
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Your camera guesses colors it never sees
The sensor measures light intensity, not color; a red, green, and blue filter mosaic lets the processor estimate the missing color information for each pixel.
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Why infomercials make easy chores look impossible
Infomercial performers are often directed to fail spectacularly at ordinary tasks, like dropping eggs, to make a simple chore seem impossible without the…
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How eating contests turn nausea into entertainment
Broadcasts linger on sweating, visible distress, and near-regurgitation, turning the body's rejection of too much food into a test of willpower.
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