stackyFACTS
STAY CURIOUS

The world is more interesting than you think.

Unexpected facts, big ideas, and little discoveries. Find something that sparks your curiosity today.

34,160 facts11 topics to exploreStart exploring ↓
YOUR NEXT DISCOVERY

A little more wonder

Page 857 / 1424
STACKY FOR IPHONE

A bigger world.
One discovery
at a time.

Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Download on the App Store
Even Middle-earth needed a catering crew
Culture & entertainment

Even Middle-earth needed a catering crew

Flying Trestles catered the Lord of the Rings films from 1999 to 2003. Behind those remote landscapes was another operation moving kitchens and feeding…

Discover more
Modern golf clubs feature hollow heads for forgiveness
Technology

Modern golf clubs feature hollow heads for forgiveness

A mostly hollow clubhead lets designers concentrate weight around its outer edges, making it less likely to twist when you miss the center of the face.

Discover more
Counterfeit pharmaceuticals generate billions illicitly
Health

Counterfeit pharmaceuticals generate billions illicitly

The danger is that a fake pill can pass for the real thing without containing its active drug. If it is mostly chalk or filler, the person taking it may get…

Discover more
The cotton in pill bottles can damage what's inside
Health

The cotton in pill bottles can damage what's inside

Cotton was added to keep tablets from knocking against each other and breaking during shipping. Once you open the bottle, though, cotton can hold onto…

Discover more
The farthest point from an ocean lies deep inside China
Travel

The farthest point from an ocean lies deep inside China

Eurasia's continental pole of inaccessibility is in Xinjiang, roughly 1,600 miles from a coastline. Its precise location depends on how river mouths and…

Discover more
Why some pill packs include a week of placebos
Health

Why some pill packs include a week of placebos

The placebo pills keep the pack’s daily rhythm intact: you still take a tablet each morning, even during the inactive week. That familiar cue makes it easier…

Discover more
Sable Island keeps redrawing its own shoreline
Travel

Sable Island keeps redrawing its own shoreline

Waves and wind move sand around the narrow Atlantic island, eroding some stretches and building others. Its outline changes because the material itself is…

Discover more
Tying knots in clothing curses local enemies
Myths & mysteries

Tying knots in clothing curses local enemies

Some folk traditions held that tying a handkerchief into knots while focusing on an enemy could bind up their plans—a curse carried out with laundry and spite.

Discover more
How machines read the magnetic ink on US bills
Economy

How machines read the magnetic ink on US bills

A crumpled dollar can pass from person to person but fail at a vending machine. Its automated scanner checks the bill’s magnetic ink, and a worn-down signal…

Discover more
Saturn has a six-sided storm at its pole
Science

Saturn has a six-sided storm at its pole

Saturn’s hexagon is made by wind: a fast jet stream circles the pole, while waves in the moving air help keep its path angular. Without those waves, the wind…

Discover more
Pictures falling from nails announce sudden doom
Myths & mysteries

Pictures falling from nails announce sudden doom

If no obvious cause was visible, people read the fall as a warning about the person in the portrait.

Discover more
How carnival workers guess your weight
Games

How carnival workers guess your weight

They estimate from visible proportions such as wrist thickness and shoulder width, then account for clothing.

Discover more
Spin the bottle was once a polite greeting game
Games

Spin the bottle was once a polite greeting game

In an early version, adults supervised as players bowed or shook hands with whoever the bottle pointed to—a far cry from the kissing game it became.

Discover more
Litter bearers require perfectly synchronized walking
Transport

Litter bearers require perfectly synchronized walking

Litter bearers have to step in rhythm so the poles rise and fall together. If one person breaks the beat, the passenger gets bounced from side to side—less…

Discover more
Winning a car can create a bill without giving you cash to pay it
Games

Winning a car can create a bill without giving you cash to pay it

In the US, a game-show prize generally counts as taxable income at its fair market value. A contestant can therefore receive an expensive car rather than the…

Discover more
Rowing oars feature asymmetrical spoons for water grip
Technology

Rowing oars feature asymmetrical spoons for water grip

The blades are scooped and set off-center to stay planted in the water instead of diving too deep or slipping out, helping rowers push the boat forward.

Discover more
Mosquito control starts before the first mosquito bites
Culture & entertainment

Mosquito control starts before the first mosquito bites

Mosquitoes need suitable water to develop as larvae. Managing standing water and treating breeding sites lets a resort attack the next generation before it…

Discover more
Why the Wheel of Fortune wheel is so hard to spin
Games

Why the Wheel of Fortune wheel is so hard to spin

The Wheel of Fortune wheel is reinforced with heavy steel to keep its momentum smooth, making the giant prop surprisingly hard to spin.

Discover more
StackyMore discoveries in the app
Download on the App Store