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
A belly button can become the focus of a phobia
The fear is often called omphalophobia. For someone with this specific fear, seeing or anticipating contact with a navel can produce distress out of…
Discover more
Charades began as aristocratic literary riddles
The French aristocracy originally played it as a parlor game, using poetic riddles to hint at words before the acting-out version.
Discover more
How bulletproof vests catch bullets like nets
The woven layers stretch and deform on impact, trapping the bullet instead of stopping it with a rigid wall. The wearer can still suffer broken ribs.
Discover more
No bridge spans the Amazon's main channel
The huge river winds through sparsely populated areas, with wide floodplains and banks that change with the seasons. A bridge would need costly approaches as…
Discover more
Making up sophisticated excuses for terrible actions
A polished excuse can do more than hide a bad act from other people. It lets the person who did it keep seeing themselves as good by recasting cruelty as…
Discover more
Ski bindings eject boots instantly during severe twists
Calibrated springs hold the boot in place but release it when a twist reaches a dangerous threshold, helping prevent leg injuries.
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.
Paraffin wax sourcing controls crayon pricing
The wax in a box of crayons comes from petroleum refining. When refining is disrupted, the cost can reach all the way from oil processing to a child’s school…
Discover more
Spectral apports materialize out of thin air
An apport is an object that is said to appear in a locked room by supernatural means. Accounts describe modest offerings such as damp pebbles, cheap flowers,…
Discover more
When an itch feels like an infestation
When you suspect bugs, every tickle gets promoted to evidence. Your attention hunts for sensations, and normal skin signals that would usually fade into the…
Discover more
Paintball began by marking trees and cattle
Loggers and cattle ranchers used paintball markers to tag distant trees and animals before someone turned the guns on people.
Discover more
A chocolate coating can change a marshmallow's tax bill
A 2024 New York tax ruling treated chocolate-covered marshmallow twists as taxable candy, even though plain marshmallows were not in that category. Leaving…
Discover more
Mississippi applies taxes to automated car washes
Pay for an automated wash and the service is taxed; wash the car yourself and you buy the supplies instead. The state taxes the paid wash, not the bucket and…
Discover more
Paying towns to turn off their streetlights
For historical dramas set before electricity, production crews may pay municipalities to shut down the power grid for a night, leaving residents in the dark.
Discover more
Some people are terrified of ferns
A fern looks harmless to most people, but a phobia can make its sight trigger intense fear. The mind can learn to treat a particular object as danger, even…
Discover more
A toucan's enormous beak doubles as an air conditioner
A toucan can dump heat through its beak by sending more warm blood to it. When the bird needs to stay warm, it reduces that flow and holds on to heat instead.…
Discover more
Earth's longest mountain range is underwater
The mid-ocean ridge system stretches about 40,000 miles, with a jagged chain of peaks running along the seafloor.
Discover more
One in five prescriptions is off-label
A drug can be approved for one condition and still be prescribed for another. In that off-label use, the doctor is using an existing medicine for a purpose…
Discover more
Why flamingos feed with their heads upside down
A flamingo sweeps its beak through water or mud, where small plates inside trap food particles. Its tongue pumps water through the beak; water drains away…
Discover more
Your RollerCoaster Tycoon cleaner might be busy mowing
In the first game, handymen can mow grass as well as empty bins and clear paths. Leave every task enabled and a worker may tend the lawn while a less…
Discover more
When photobooths were arcade attractions
In the early 20th century, photobooths were mechanical novelties, displayed alongside coin-operated fortune tellers because automated photography amazed crowds.
Discover more
Volatile organic compounds drive marker pricing
A marker has to stay wet inside its tube and write when it reaches paper. The solvents that manage that trick are a major part of its production cost.
Discover more
Sled dogs sleep under the snow
Snow holds pockets of air that slow heat loss, and a dog curled beneath it stays out of the wind. To a sled dog, a snowbank isn’t bad weather; it’s a blanket…
Discover more
Hot Potato made a timer into the enemy at a party
Players pass an object around a circle, trying not to hold it when the signal ends. Manufactured versions added their own timing mechanism, including the…
Discover more
Finding stray hairpins ensures incoming romance
In this folk belief, a rusty pin meant the admirer was older, while a shiny one promised a younger suitor.
Discover more