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 954 / 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
Bandwagon effect forces you to buy what everyone else has
Economy

Bandwagon effect forces you to buy what everyone else has

You can dislike a style until your friends start wearing it. Seeing them adopt it makes the same look feel more appealing, and fitting in can outweigh your…

Discover more
Candida auris is an emerging fungal superbug
Health

Candida auris is an emerging fungal superbug

Candida auris is a drug-resistant yeast that can persist on hospital surfaces. That combination makes it difficult to control: it can remain in the…

Discover more
Horizon perfectly demands deeply aggressive robot dismantling
Games

Horizon perfectly demands deeply aggressive robot dismantling

The game’s machines are armored and towering, but players fight them with bows and arrows—a striking mismatch between high-tech enemies and sharpened sticks.

Discover more
A kitchen sponge offers bacteria both a home and a food supply
Health

A kitchen sponge offers bacteria both a home and a food supply

Its pores retain moisture and food residue, while repeated wiping moves material between surfaces. Studies find dense microbial communities in used sponges,…

Discover more
Chimneys were built with crooks to block falling debris
Myths & mysteries

Chimneys were built with crooks to block falling debris

The bend was meant to stop debris from dropping straight into the fireplace, but it could trap soot and create a fire hazard.

Discover more
Why comic artists used blue pencils
Culture & entertainment

Why comic artists used blue pencils

Reprographic cameras couldn't detect non-photo blue, so artists could leave their sketch lines in place without erasing them.

Discover more
Extreme jealousy leads to wild cheating accusations
Psychology

Extreme jealousy leads to wild cheating accusations

A person consumed by jealousy may treat uncertainty like a detective’s clue: a hidden phone, a quiet mood, a late reply. Once the mind expects cheating,…

Discover more
A Hard Rock shirt was a travel post you could wear
Travel

A Hard Rock shirt was a travel post you could wear

A location-specific shirt with the guitar logo became a way to show off where you'd traveled, long before Instagram.

Discover more
David Atchison may have been president for one day
History

David Atchison may have been president for one day

Polk’s term ended on Sunday, and Taylor waited until Monday to take the oath, leaving a one-day gap that put Atchison’s name in the presidential succession…

Discover more
Digital literature utilizes completely fluid text formatting
Culture & entertainment

Digital literature utilizes completely fluid text formatting

E-book text reflows when readers change the font size, shifting words onto new lines and changing the layout from device to device.

Discover more
No extradition treaty doesn’t guarantee escape
Travel

No extradition treaty doesn’t guarantee escape

A country without a formal extradition treaty can still choose to deport someone to their home country, so the absence of a treaty doesn’t guarantee escape.

Discover more
When ATMs swallowed your card after wrong PINs
Science

When ATMs swallowed your card after wrong PINs

Some early ATMs pulled in a card after too many incorrect PIN attempts instead of ejecting it. That kept someone else from taking another shot at the card,…

Discover more
The equals sign replaced a phrase its inventor kept repeating
History

The equals sign replaced a phrase its inventor kept repeating

In 1557, Robert Recorde introduced two parallel lines as shorthand for is equal to. He explained the choice by saying that no two things could be more equal.…

Discover more
Why smart suitcases can be a fire risk
Travel

Why smart suitcases can be a fire risk

Lithium batteries can pose a fire risk in cargo holds, so restrictions on smart bags can leave models with built-in batteries unusable.

Discover more
Professional book indexers manually categorize back pages
Culture & entertainment

Professional book indexers manually categorize back pages

A professional indexer reads the manuscript and decides which concepts deserve entries, so the alphabetized list reflects human judgment rather than an…

Discover more
Breaking glass on purpose is supposed to secure fortune
Myths & mysteries

Breaking glass on purpose is supposed to secure fortune

At gatherings, people shattered glass in the belief that the noise would drive bad luck away and usher in prosperity.

Discover more
Half-Life's G-Man still has no backstory
Games

Half-Life's G-Man still has no backstory

The suited bureaucrat keeps appearing throughout the series, but the games have never explained who he is.

Discover more
Audio show cover art must scale to microscopic dimensions
Culture & entertainment

Audio show cover art must scale to microscopic dimensions

Cover art may appear at postage-stamp size on a phone, where fine details and subtle gradients can disappear. Large, legible elements hold up better.

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