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
Electronic testers must physically join the active circuit
To measure current, a technician breaks the circuit and inserts a multimeter into the gap, so the current flows through the meter.
Discover more
Cutting an onion assembles a chemical irritant
Breaking its cells lets compounds meet enzymes they were kept apart from. The resulting reactions produce a volatile substance that reaches the eyes and…
Discover more
Boiling water was a massive daily chore that took hours
Without an electric kettle, hot water started with a fire and heavy iron cookware. Waiting for it to boil could take half the morning; “just make tea” was a…
Discover more
When carpool lanes make traffic worse
A carpool lane reserves road space for vehicles with multiple riders. When traffic pours into fewer general lanes while the reserved lane carries less, the…
Discover more
Spanish pilgrimage routes rely on luxury luggage transport
On some Spanish pilgrimage routes, vans carry pilgrims’ suitcases from hotel to hotel, leaving them to walk with little more than a water bottle.
Discover more
How carbon offsets let polluters claim neutrality
An airline can keep burning jet fuel and buy tree-planting credits to cancel out those emissions on paper. The offset changes the accounting, not what comes…
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.
A child's toothpaste dose can be smaller than the toothbrush
The American Dental Association recommends a rice-grain-sized smear of fluoride toothpaste for children under three and a pea-sized amount for ages three to…
Discover more
Upright chopsticks in rice can evoke a funeral offering in Japan
Placing them vertically in a bowl resembles the way rice is offered to the deceased in Buddhist funerary practice. On an ordinary dining table, the same…
Discover more
Low vibrations are associated with guilt and deep shame
Some mystics place remorse near the bottom of an emotional frequency scale, alongside apathy and despair.
Discover more
A repeated lyric can turn a song into a party-game clock
The Roxanne drinking game assigns repeated phrases in the Police song as cues for different players. Its structure comes from the recording rather than dice…
Discover more
Could overusing antibacterial soap breed tougher bacteria
Think of antibacterial use as a filter: susceptible bacteria are removed, but bacteria that tolerate the product may be left behind to reproduce. They can…
Discover more
Charlie Sheen once reported a horror film as a real murder
After watching the Japanese horror film Guinea Pig, Charlie Sheen reportedly thought its gore was real and alerted authorities. The investigation ended when…
Discover more
Nacho cheese names a use, not one fixed recipe
The familiar sauce can be made with real cheese, other dairy ingredients and emulsifiers that keep it smooth. Unlike a specific standardized cheese variety,…
Discover more
Ancient hoop games came with their own soundtrack
Greek and Roman sources describe young people rolling hoops, and some Roman hoops carried small metal rings that jingled as they moved. These were toys and…
Discover more
Why film crews call the lighting chief a gaffer
The title comes from the metal gaff hooks early film crews used to handle heavy overhead lighting cables.
Discover more
Cardinal modalities are aggressive middle managers
Astrology portrays cardinal signs as eager initiators who push projects forward, then may move on before they're finished.
Discover more
Washing the car only during a growing phase
Some car enthusiasts wait for the moon's waxing phase, believing mud will wash off more easily then.
Discover more
Upward angled airplane wings automatically stabilize flight
Those upward-tilted wings help the plane resist rolling: in a sideslip, the lower wing meets the airflow at a steeper angle and gains lift. The aircraft gets…
Discover more
Motel 6's name preserved its original nightly price
The first property opened in Santa Barbara in 1962 with rooms costing $6 a night. The no-frills price became the brand itself. Rates changed as the company…
Discover more
Spinning dust devils lift surface particulates upward
Sun-warmed ground heats the air above it, and that rising air starts a spinning column. The whirlwind grabs loose dust and carries it upward—an elaborate…
Discover more
Half your body's atoms may change within a year
Your body constantly dismantles molecules and rebuilds them, using atoms from food, water, and air while releasing others as waste. Estimates suggest roughly…
Discover more
What gel manicures expose your hands to
The lamp hardens gel by shining UV light on your fingertips, and some of that light reaches the surrounding skin. So while your nails are under the lamp, the…
Discover more
Why Die Hard is a Christmas movie
It unfolds on Christmas Eve during an office holiday party, with Christmas music, festive decorations, and a plot that ends with a family reunion.
Discover more
Asymmetric thrust violently yaws twin engine aircraft
If one engine quits, the other keeps pushing from off to the side of the plane’s centerline. That sideways leverage yaws the nose toward the dead engine,…
Discover more