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 1253 / 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
When Soviet artists trained workers like machines
Culture & entertainment

When Soviet artists trained workers like machines

The Soviet obsession with productivity got so intense in the 1920s that Aleksei Gastev tried to literally engineer human workers into meat machinery. Through…

Discover more
The economist who proved communities can share resources
Economy

The economist who proved communities can share resources

For decades, economists loved quoting the 'Tragedy of the Commons,' a deeply cynical theory claiming that humans are selfish monsters who will inevitably…

Discover more
Chile once ran its economy from a sci-fi control room
Technology

Chile once ran its economy from a sci-fi control room

In the early 1970s, the Chilean government attempted to manage their entire socialist economy using telex machines, mainframe computers, and a control room…

Discover more
How a hotel cooling system caused a deadly outbreak
Health

How a hotel cooling system caused a deadly outbreak

Going to a convention to swap war stories shouldn't end in an explosive mass casualty event. In 1976, an American Legion gathering in Philadelphia turned into…

Discover more
The film Customs agents burned over Hedy Lamarr
Culture & entertainment

The film Customs agents burned over Hedy Lamarr

Long before the internet, moral guardians lost their absolute minds over a blurry, black-and-white depiction of a woman enjoying herself. US Customs agents…

Discover more
Victorians watched animation by staring into mirrors
Culture & entertainment

Victorians watched animation by staring into mirrors

Nineteenth-century entertainment was mostly just finding new ways to give yourself a migraine. To watch the very first animation loops, upper-class citizens…

Discover more
Einstein's rival mistook heated walls for cosmic aether
Science

Einstein's rival mistook heated walls for cosmic aether

Dayton Miller was so desperate to prove Einstein wrong about relativity that he dragged a massive interferometer up Mount Wilson. When his delicate instrument…

Discover more
The bus that could switch from roads to rails
Transport

The bus that could switch from roads to rails

In the 1930s, the German Schienen-Straßen-Omnibus attempted to solve the 'last mile' problem by being an awkward chimera of a train and a bus. It was a…

Discover more
GeoCities hosted a theory that the Middle Ages never happened
Technology

GeoCities hosted a theory that the Middle Ages never happened

Imagine being so contrarian you delete 300 years of history. Heribert Illig’s Phantom Time Hypothesis—which argued the years 614 to 911 AD were entirely…

Discover more
Defining chaotic fluid dynamics with a tiny stream of dye
Science

Defining chaotic fluid dynamics with a tiny stream of dye

Osborne Reynolds looked at plumbing and saw absolute mathematical chaos. In 1883, he wanted to know exactly when a smooth, polite flow of liquid turns into a…

Discover more
The Blue Train shaded its windows with real gold
Travel

The Blue Train shaded its windows with real gold

Sunscreen is for peasants, but if you're riding South Africa's most obscenely luxurious rail line, you let precious metals protect your skin. The iconic Blue…

Discover more
A math error made America's biggest nuclear blast
Science

A math error made America's biggest nuclear blast

The 1954 Castle Bravo nuclear test was supposed to be a modest 6-megaton explosion. Instead, the scientists accidentally unleashed a 15-megaton apocalyptic…

Discover more
Before board games, Milton Bradley sold spinning illusions
Culture & entertainment

Before board games, Milton Bradley sold spinning illusions

Before they cornered the market on family board games, Milton Bradley sold paper strips of dancing figures for wealthy families to spin in wooden drums. The…

Discover more
When a satellite hijacked your HBO movie
Culture & entertainment

When a satellite hijacked your HBO movie

Imagine settling in for a premium cable movie in the late 90s, only for a rogue satellite to violently overwrite your signal. Thanks to accidental feed slip…

Discover more
The calculator designed in a concentration camp
Technology

The calculator designed in a concentration camp

The Curta Type I mechanical calculator looks like a tiny, metallic pepper grinder, but twisting its crank actually performs complex mathematical wizardry.…

Discover more
The Atari console that turned music into shapes
Culture & entertainment

The Atari console that turned music into shapes

Back in 1977, Atari decided the world needed a dedicated wood-paneled console whose sole purpose was turning stereo audio into seizure-inducing geometric…

Discover more
Hellschreiber hacked bad radio signals with dot matrix
Technology

Hellschreiber hacked bad radio signals with dot matrix

German inventor Rudolf Hell essentially created the unholy offspring of a fax machine and a teleprinter in 1929, appropriately named the Hellschreiber.…

Discover more
The rats who chose a paradise over cocaine
Psychology

The rats who chose a paradise over cocaine

For decades, scientists claimed drugs were chemically irresistible by putting isolated, depressed rats in cages with cocaine water. Bruce Alexander called…

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