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 683 / 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
Spore's anti-piracy software punished paying customers
Games

Spore's anti-piracy software punished paying customers

EA’s SecuROM software limited how many times paying customers could install the game, while pirates stripped out the restriction and played without it.

Discover more
Hostile takeovers bypass corporate boards completely
Economy

Hostile takeovers bypass corporate boards completely

The target company’s bosses may plead with shareholders not to accept, but they don’t get the final say. A hostile bidder offers shareholders a premium for…

Discover more
Hearthstone changed a demon without changing the card's job
Games

Hearthstone changed a demon without changing the card's job

In a 2019 art update, Succubus became Felstalker while keeping the same stats and effect. Blizzard's Dave Kosak described the changes as bringing older…

Discover more
Disney replaced hydraulic muscles with electric ones
Travel

Disney replaced hydraulic muscles with electric ones

Older Audio-Animatronics often used pressurized fluid to move their limbs. Newer systems, including Disney's A-1000 platform, use electric motors to improve…

Discover more
Sphinx trivia games carrying a lethal penalty
Myths & mysteries

Sphinx trivia games carrying a lethal penalty

In the myth, the Sphinx guarded a route by posing riddles and devoured those who failed to answer.

Discover more
Why roadside diners once served night-shift workers
Travel

Why roadside diners once served night-shift workers

Roadside diners first served factory and rail-yard workers coming off graveyard shifts. They became travel stops later, as long-distance driving grew popular…

Discover more
Your triceps gets its name from three separate heads
Health

Your triceps gets its name from three separate heads

The muscle at the back of the upper arm has three parts that converge toward the elbow. Together they straighten the arm, making pushing movements possible.…

Discover more
The feud that created Puma and Adidas
History

The feud that created Puma and Adidas

After a bitter feud, brothers Adolf and Rudolf Dassler split their shoe business: Adolf founded Adidas, Rudolf founded Puma. Their hometown split along with…

Discover more
Vending machines are crucial rest stops
Travel

Vending machines are crucial rest stops

At isolated highway pull-offs, vending machines can be among the few places to find food or drinks, even in the middle of the night.

Discover more
Brussels built an attraction you can ride through an atom model
Transport

Brussels built an attraction you can ride through an atom model

The Atomium's spheres represent atoms in an enlarged iron crystal, and connecting tubes contain passages and escalators. Visitors move through the structure…

Discover more
Rokurokubi necks stretching across entire rooms
Myths & mysteries

Rokurokubi necks stretching across entire rooms

They look like ordinary people by day; after dark, their necks can stretch across a room, with their heads drifting near the ceiling.

Discover more
Torque explains why door handles are far from hinges
Science

Torque explains why door handles are far from hinges

A door handle gives your push more turning power when it’s farther from the hinge. The extra distance increases torque, so the same force turns the door more…

Discover more
Kelpie equine forms drowning weary travelers
Myths & mysteries

Kelpie equine forms drowning weary travelers

In folklore, these water spirits lure tired wanderers onto their sticky backs, then plunge into deep lakes with them.

Discover more
Awards-show audiences have stand-ins, too
Culture & entertainment

Awards-show audiences have stand-ins, too

When a guest leaves a visible seat, a seat filler can temporarily occupy it so camera shots don't show a distracting gap. The job is to look like part of the…

Discover more
Why comedy writers save their worst jokes
Culture & entertainment

Why comedy writers save their worst jokes

Comedy writers keep archives of rejected jokes in case a premise becomes useful later. Late-night monologues can be built from scraps that once seemed too…

Discover more
The Beatles could appear on television without going to the studio
History

The Beatles could appear on television without going to the studio

Promotional films for songs such as 'Rain' and 'Paperback Writer' let broadcasters show the band performing a new single from a reusable recording. The 1966…

Discover more
Swinging arms in circles uses every single joint motion
Health

Swinging arms in circles uses every single joint motion

A circular arm swing traces a cone because the shoulder moves through several directions in sequence. The combined path includes bending forward, moving out…

Discover more
The cookie inventor traded rights for chocolate
History

The cookie inventor traded rights for chocolate

Ruth Wakefield traded Nestlé the rights to her cookie recipe for a lifetime supply of chocolate. The company got a recipe it could sell; its creator got the…

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