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 New York Times put powered flight millions of years away—69 days before the Wrights flew
An October 9, 1903 editorial speculated that a workable flying machine might take one to ten million years to evolve. On December 17, the Wright brothers made…
Discover more
Glossy monitor screens act as dark mirrors
Glossy screens can make colors look more vivid, but without a matte anti-glare coating they reflect room lights—and your face—during dark scenes.
Discover more
Fifth wheels require extremely thick grease
A fifth wheel carries a trailer’s weight across two steel plates, so thin lubricant would get squeezed out and leave metal grinding on metal. Thick grease…
Discover more
Capricorn is represented by a mythical sea goat because ancient gods frequently panic morphed into fish
In Greek myth, Pan tried to escape a monster by turning into a fish but transformed only halfway, leaving the goat-and-fish form that became Capricorn's emblem.
Discover more
Why sled dogs wear booties in the snow
Booties protect paw pads from sharp ice and keep snow from packing between the toes. A sled dog can cross a wilderness, but one frozen snowball between its…
Discover more
How two strings make an erhu sound like a sob
The bow and the player’s finger pressure let the musician bend and roughen the notes until they closely resemble a human sob.
Discover more
STACKY FOR IPHONEA bigger world.
One discovery
at a time.
Keep discovering with Stacky. Interesting facts in an app that is always within reach.
Old Maid makes one unmatched card everyone's problem
Players remove pairs, then draw from one another while trying not to finish with the lone card. A hand can look nearly solved until someone passes the…
Discover more
Dreamcast optical discs hold precisely one gigabyte
GD-ROMs held more data than standard CDs, and their proprietary format was intended to make unauthorized copying harder.
Discover more
Popcorn was a portable snack long before movie theaters
By selecting corn that popped over a fire, Indigenous peoples created food that was light, nutritious, and slow to spoil. It traveled well long before anyone…
Discover more
An early permanent youth hostel put bunks in a castle
Richard Schirrmann opened the hostel at Altena Castle in 1912, after earlier experiments with accommodation for young walkers. Dormitories, washing rooms, and…
Discover more
Why duct tape fails on hot air ducts
The cloth-backed adhesive on duct tape can fail on hot metal ducts: heat can turn the adhesive into a powder, causing the seal to come apart.
Discover more
Eleventh house manages large social networks
In astrology, it covers large groups, professional associations, and acquaintances whose connections may help you pursue long-term goals.
Discover more
When artists threw themselves into their work—literally
The Gutai artists wanted art to be an event, not just an image on canvas. They plunged through paper and wrestled in mud, making the artist’s body part of the…
Discover more
Blaise Pascal created an early public bus system
Pascal’s 17th-century Paris carriages followed set routes and schedules, carrying passengers for a fixed fare. The idea was public transport before anyone had…
Discover more
Häagen-Dazs is a made-up name
The founders wanted an imported-sounding name to suggest European style, so they invented one. The foreign feel was the point; the name wasn’t actually…
Discover more
A winning lottery ticket can expire into a worthless keepsake
Prizes have claim deadlines, and missing one can extinguish the right to collect. Washington state, for example, generally allows 180 days under its…
Discover more
In Germany, the empty crossing can still mean stop
A red pedestrian signal applies even when you cannot see a car coming. That is different from crossing somewhere without a crosswalk. The surprising social…
Discover more
Why a straight highway isn't automatically a runway
A landing aircraft needs more than a long strip of asphalt: signs, bridges, power lines, and traffic can all make a road unusable. Some countries deliberately…
Discover more
Garfield was designed to sell merchandise
Garfield's creator designed him to be broadly relatable and easy to license, making merchandise a goal from the start.
Discover more
Why Spaniards eat dinner so late
Restaurants in Spain often don't open for dinner until 9 p.m., so early eaters may have to tide themselves over with afternoon snacks.
Discover more
The Maya saw the night sky as a giant jaguar
They imagined the night sky as a giant jaguar, with stars as glowing spots on its pelt—a dangerous predator overhead after sunset.
Discover more
Mysticism literally translates to closing your own eyes
The Greek root means “to close”—specifically, to shut the eyes or mouth, a reference to the inward nature associated with mystical practice.
Discover more
A sticky mouthful can become the focus of a phobia
For someone afraid of choking, peanut butter's clingy texture can make an ordinary mouthful feel threatening. The fear attaches to the sensation and what the…
Discover more
Why some London Underground stations sit on hills
A train climbs into a station and descends away from it. The uphill approach helps slow the train; gravity then helps it pick up speed on departure, saving…
Discover more