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 295 / 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
Why pretzels look like crossed arms
History

Why pretzels look like crossed arms

Because dough shaped into a physical representation of folded limbs was highly encouraging. Early bakers twisted the dough to mimic people hugging themselves,…

Discover more
Kimberlite rock formations contain deep unmined diamonds
Science

Kimberlite rock formations contain deep unmined diamonds

Diamonds are formed too deep to reach, so we have to rely on violent 'kimberlite pipes' to bring them up. These are carrot-shaped, supersonic volcanic…

Discover more
Judging a stranger solely on their birthday
Myths & mysteries

Judging a stranger solely on their birthday

It is entirely socially acceptable in some circles to hear someone was born in November and immediately decide they are a secretive, untrustworthy villain,…

Discover more
CSV files routinely use semicolons instead of commas
Technology

CSV files routinely use semicolons instead of commas

Despite literally standing for comma-separated values, regional formatting creates utter chaos. Because European decimal formats utilize commas instead of…

Discover more
Concrete roads hide thick steel bars inside to stop cracks
Transport

Concrete roads hide thick steel bars inside to stop cracks

Concrete is incredibly strong until you try to bend it, at which point it shatters instantly. To stop highways from disintegrating into rubble, massive grids…

Discover more
Why submarines avoid the famous sonar ping
Transport

Why submarines avoid the famous sonar ping

Hollywood loves a dramatic radar ping, but real submariners prefer not announcing their location to heavily armed enemies. Active sonar blasts an acoustic…

Discover more
Compact keyboards force brutal hunt and peck
Technology

Compact keyboards force brutal hunt and peck

Removing the number pad to save desk space sounds like a great minimalist aesthetic choice. That is, until you actually have to type a phone number or fill…

Discover more
Barium metal rapidly oxidizes when exposed to regular air
Science

Barium metal rapidly oxidizes when exposed to regular air

Barium is incredibly needy when it comes to oxygen. Cut a chunk of pure, shiny barium metal, and within mere seconds, it turns dull and black as it furiously…

Discover more
Why you start whispering when someone whispers to you
Psychology

Why you start whispering when someone whispers to you

Your independent personality is a lie dictated by 'chameleon effect' mirroring. To maintain social harmony, your brain auto-tunes your vocal cords to match…

Discover more
Why roll-on ferries let drivers avoid reversing
Transport

Why roll-on ferries let drivers avoid reversing

Watching a hundred drivers attempt to back up their respective heavy rigs on a slippery metal deck would be sheer chaos. Modern transport vessels open at both…

Discover more
The fake shoppers who made grocery carts popular
Economy

The fake shoppers who made grocery carts popular

Imagine being so terrified of a basket on wheels that a grocery store has to hire crisis actors to show you it's safe. When Sylvan Goldman introduced the…

Discover more
Why rare earth elements aren't actually rare
Economy

Why rare earth elements aren't actually rare

The elements crucial for modern hardware are incredibly abundant in the earth's crust. They are only called 'rare' because extracting them requires boiling…

Discover more
Why Steve Jobs was sent to Atari’s night shift
Games

Why Steve Jobs was sent to Atari’s night shift

Genius apparently smells terrible. In the mid-70s, a young Steve Jobs worked at Atari, but his aggressive personality and absolute refusal to use deodorant or…

Discover more
Spinning into wooden crates to collect floating red apples
Games

Spinning into wooden crates to collect floating red apples

Why grab a door handle when you can just aggressively pirouette through a solid wood box? Crash Bandicoot popularized the bizarre mechanic of a marsupial…

Discover more
The game that got Minecraft’s creator sued by Bethesda
Games

The game that got Minecraft’s creator sued by Bethesda

Corporate lawyers have zero chill. When Minecraft creator Notch announced a new fantasy card game simply titled 'Scrolls', the legal team at Bethesda…

Discover more
Victorians once climbed inside dead whales
Health

Victorians once climbed inside dead whales

In nineteenth-century Australia, a widely accepted wellness cure involved finding a recently deceased massive marine mammal, carving a small hole in it, and…

Discover more
Culture & entertainment

Joaquin Phoenix faked a rap career for a year

Sometimes the greatest performance is just aggressively annoying the entire world. Joaquin Phoenix spent a solid year claiming he was retiring from acting to…

Discover more
The ironing board was invented to save dinner tables
Technology

The ironing board was invented to save dinner tables

Doing laundry required extreme collateral damage mitigation. Dedicated flat folding tables were introduced strictly because people kept accidentally scorching…

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