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

Vertical human height relies on hundreds of tiny variables
Height isn’t decided by a single genetic switch: more than 700 genetic variations contribute. Each is one small part of a much bigger group effort, which is…
Discover more
Why authentic tacos don't come with yellow cheese
Traditional street tacos usually use soft tortillas and fresh toppings rather than crunchy shells and yellow cheese, which are associated with Americanized…
Discover more
High-speed trains connecting the UK to Europe go underwater
The trains pass through a tunnel beneath the Channel, with the water above rather than around them.
Discover more
Australia imported a pest solution that became a pest
Cane toads were released in Queensland in 1935 to fight cane beetles. They failed as the hoped-for crop protection and spread, with their toxins endangering…
Discover more
A simulated driver follows a cost calculation, not common sense
Traffic in city-building games depends on rules for choosing routes: distance, speed, congestion, and other costs can be weighted differently. If the rules…
Discover more
Devotees silently repeat sacred syllables within their minds
Some traditions regard silent repetition as more advanced and potent than saying a mantra aloud, because it draws attention inward.
Discover moreA bigger world.
One discovery
at a time.
Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Sledgehammers are specifically designed to obliterate
Unlike a claw hammer, which can pull nails, a sledgehammer is built for heavy blows.
Discover more
Better digital services can beat piracy
When digital stores are more convenient, consumers may choose to pay rather than download illegally. Piracy can reflect poor access, not just an unwillingness…
Discover more
Railway switches violently shove tracks over
At a junction, one thin rail moves until it meets the main rail, leaving the wheel flange only one path to follow. The switch locks into that position before…
Discover more
Graphing exactly how unequal society's pie gets sliced
On the graph, perfect equality is a straight diagonal: each share of the population gets the same share of resources. The more the curve bows away from that…
Discover more
Roundabouts use geometry to control movement flow
A roundabout bends the road around a central island, so cars must turn as they enter instead of crossing straight through. The curve slows traffic and…
Discover more
What the star on an elevator button means
The star marks the elevator’s designated main floor, typically the lobby where rides begin and end. It’s a tiny icon saying, “For the grand exit, press here.”
Discover more
Why luxury train passengers pay thousands for a tiny bed
Passengers pay for the romantic experience, including dressing up and drinking champagne, despite sleeping in a narrow bunk.
Discover more
Even fake eyes can change how you behave
Those fake eyes don’t need to fool anyone. They only need to remind people of being seen. That cue can make reputation and social rules feel more present,…
Discover more
In Japan, taxi doors open themselves
The driver operates the automatic doors as a courtesy, so passengers can simply wait instead of reaching for the handle.
Discover more
Perceiving vast depth with one closed eye
Even with one eye closed, a nearby cup looks nearer than the wall behind it. The mind reads perspective, edges, shadows, and movement as clues to distance.…
Discover more
When marketing costs more than making the product
Publishers sometimes spend more promoting a release than creating it, betting that a big campaign can matter more to sales than the product itself.
Discover more
British fish and chips are heavily drenched in malt vinegar
The sharp vinegar cuts through the richness of the fried food, even as it softens the crispy coating.
Discover more
Zen monks use wooden sticks to whack distracted sitters
The kyosaku is a flat wooden stick used by a meditation monitor to strike sitters’ shoulders. The ritual is intended to ease stiffness and refocus meditators…
Discover more
PewDiePie built a media empire strictly off playing on camera
His dramatic reactions to independent games became the draw, showing how on-camera play could attract an audience without traditional high production.
Discover more
Nearly half of gaming's money was on phones
Newzoo's 2023 market report projected about $90.5 billion in mobile-game spending, or 49% of the global games market. That was almost as much as consoles and…
Discover more
A full elevator can deliberately skip people waiting outside
An automatic-bypass feature lets a loaded car ignore hall calls while delivering the passengers already aboard. That is different from an overload condition,…
Discover more
Thai street food involves sitting on tiny plastic stools
Street vendors pair inexpensive, delicious noodles with brightly colored plastic stools so small they can feel toddler-sized.
Discover more
Skylanders practically pioneered the lucrative toys to life
Players placed a physical figure on a portal to bring it into the game, making toys part of the gameplay. Kids could end up needing a pile of figures to…
Discover more