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
How one tree can grow two kinds of fruit
Grafting joins a lemon branch to a bitter-orange tree, letting water and nutrients pass through the joined tissues. But the branch keeps its own genes, so it…
Discover more
Why even the worst team can be useful
Even the less efficient team can benefit from trading. If each side specializes in what it gives up least to produce, both can end up with more than if they…
Discover more
Smoking areas exist entirely due to municipal laws
At some venues, local ordinances require designated, adequately ventilated smoking areas. Organizers have to set aside space for them, even when they'd rather…
Discover more
LP records spin exactly at 33 and one-third revolutions
Columbia Records set the LP standard in 1948: the speed fit more than 20 minutes of audio on a side while preserving enough fidelity for clear sound.
Discover more
A flight attendant's job once came with a weight ceiling
The U.S. government's 1961 career handbook described airline hiring rules for young, unmarried women, including a maximum weight of 135 pounds. Many airlines…
Discover more
'Cash' once meant the box before it meant the money
The ordinary English word came through European terms for a money box, ultimately from Latin capsa. Over time, the container's name became the name of its…
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.
Burning frankincense to watch the smoke trail
Ancient diviners tossed frankincense and other resins onto hot coals and read the smoke as an omen. If it stayed close to the ground, they expected disaster.
Discover more
Why Taco Bell became Pizza Hut in Europe
European audiences in the 1990s weren't expected to recognize Taco Bell, so the film's logos and dialogue were changed to Pizza Hut.
Discover more
A screen cat's perfect timing often comes from a trainer
Off-camera cues, familiar targets, and rewards help an animal repeat a small action at the right moment. Editing then fits those short pieces into a scene.…
Discover more
Why a virus is named after poison
The name “virus” began with the Latin word for poison or venom. It was applied to disease back when people hadn’t yet discovered that microbes cause…
Discover more
Seeking the literal soul of the entire world
Some philosophers believed the planet had its own consciousness and sought to tap into it for answers about existence.
Discover more
Roman engineers constructed giant gravity-fed water systems
By laying channels at a gentle slope, engineers moved water without pumps. The flow supplied cities with spring water for public baths and decorative fountains.
Discover more
Pleroma represents absolute totality
In this concept, divine fullness exists apart from the material world, which is seen as imperfect.
Discover more
The TV box that let viewers vote in 1977
In 1977, QUBE viewers used large plastic buttons to answer polls in real time, making it an early interactive television system.
Discover more
When the Olympics included horse long jump
The winning horse cleared just 20 feet at the 1900 Paris Olympics. The event appeared only once; the Olympics tried a horse version of the long jump, and…
Discover more
Why granola can rival dessert for calories
Granola can pack toasted oils, honey, dried fruit, and chocolate into a small volume. Because those ingredients are energy-dense, a modest-looking bowl can…
Discover more
Where Ray Bradbury wrote Fahrenheit 451
He wrote it on a coin-operated typewriter in a library basement, spending about $10 in change.
Discover more
An Italian-looking olive oil may have foreign olives
An Italian brand, flag, or bottling address can tell a different story from the oil's origin statement. Oil bottled in Italy can contain oils from other…
Discover more
Pythagoras allegedly possessed a literal golden thigh that he would occasionally flash to prove his divinity
Ancient biographers claimed he revealed the golden limb at the Olympic Games or before skeptical priests as proof that he was Apollo’s son.
Discover more
Everyone wants the printer fixed. Everyone waits for someone else
Everyone wants the office printer fixed, but fixing it costs someone time. Each person can wait and hope a coworker pays that cost, so the printer stays…
Discover more
Jejunum handles the vast majority of internal absorption
The jejunum is where much of the nutrient handoff happens: digested food passes through, and usable nutrients cross the intestinal wall into the body. The…
Discover more
European royals married complete strangers
Royal marriages could seal political alliances, but sending a monarch across Europe for the ceremony was a hassle. An ambassador could stand in for one…
Discover more
Siamese Dream built a wall out of guitar tracks
The Smashing Pumpkins layered guitar recordings to create the album's dense sound. Stacking performances lets small differences in timing and tone combine…
Discover more
Why people tour cemeteries far from home
Cemeteries offer a rare way to approach the past at human scale: one grave, one name, one life. Traveling to visit them can satisfy curiosity about a famous…
Discover more