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 1003 / 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
The tiny houses once strapped to elephants
Transport

The tiny houses once strapped to elephants

A howdah—a raised seat or small enclosed cabin—was strapped onto an elephant’s back to carry riders above the ground. Its frame spread the load across the…

Discover more
Evens and odds was heavily played by ancient Greeks
Games

Evens and odds was heavily played by ancient Greeks

Players showed fingers and bet on whether the total was even or odd; the Greeks called the game artiasmos.

Discover more
Some expensive soup is made from bird spit
Economy

Some expensive soup is made from bird spit

To get the nests used in this prized soup, harvesters climb scaffolding inside limestone caves and collect clumps of hardened swiftlet saliva. The ingredient…

Discover more
Tulpas are imaginary friends that gain total sentience
Myths & mysteries

Tulpas are imaginary friends that gain total sentience

In accounts of tulpa practice, focused visualization is said to give an imagined companion a distinct personality—and sometimes a sense of autonomy.

Discover more
A tape drive can wear itself out waiting for data
Technology

A tape drive can wear itself out waiting for data

Tape drives work best when data keeps arriving fast enough for continuous motion. A slow feed makes the drive stop, back up and restart, a pattern called…

Discover more
Sleeping in the car turns parked transport into emergency lodging
Transport

Sleeping in the car turns parked transport into emergency lodging

A long drive can leave a traveler needing rest before reaching a hotel or destination. The same enclosed cabin that moves them can provide a temporary place…

Discover more
Psychokinesis gives you massive brain-splitting migraines
Myths & mysteries

Psychokinesis gives you massive brain-splitting migraines

In accounts of psychokinesis, moving objects by will alone is said to cause blinding headaches—an alleged power with a decidedly unpleasant side effect.

Discover more
Koji mold is the absolute foundation of soy brewing
Economy

Koji mold is the absolute foundation of soy brewing

The mold is doing the essential chemistry: koji enzymes break down proteins in soybeans and rice. That is what helps turn the ingredients into soy sauce and…

Discover more
Sepak takraw turns a volleyball net into an aerial kicking contest
Games

Sepak takraw turns a volleyball net into an aerial kicking contest

Popular in Southeast Asia, this sport has players send a rattan ball over the net using only their feet, knees, chest, and head. Athletes can launch into…

Discover more
The wild mustard that became broccoli
Science

The wild mustard that became broccoli

Those florets on your broccoli are flower buds—and people selectively bred the plant to make them large. The same wild-cabbage relative was shaped into kale…

Discover more
Log driving involved balancing on floating timber
Transport

Log driving involved balancing on floating timber

To guide timber downriver, log drivers balanced on the floating logs and pushed them with poles. Their workplace had no floor—just a pile of rolling tree…

Discover more
Pack goats can carry supplies up steep cliffs
Transport

Pack goats can carry supplies up steep cliffs

Goats balance on narrow, rocky trails and carry loads without needing a road wide enough for a truck. Their sure feet let supplies reach steep places where…

Discover more
Sophocles may have died choking on a grape
Culture & entertainment

Sophocles may have died choking on a grape

Ancient accounts say it happened during a public recitation. Sophocles was traditionally credited with writing 120 plays and living to about 90.

Discover more
Human chains efficiently pass endless buckets
Transport

Human chains efficiently pass endless buckets

A human chain turns a long walk into a short handoff: each person passes the bucket one step along the line. With enough hands, water reaches the fire faster…

Discover more
Greek tragedies allowed a maximum of three speaking actors
Culture & entertainment

Greek tragedies allowed a maximum of three speaking actors

The chorus could be unlimited, but only three actors could speak onstage, so they played multiple roles and changed masks backstage.

Discover more
The team that faced Babe Ruth helped become the Yomiuri Giants
History

The team that faced Babe Ruth helped become the Yomiuri Giants

A Japanese all-star side was assembled for the American stars' 1934 tour. Afterward, organizer Matsutaro Shoriki kept a professional team together rather than…

Discover more
Why titanium can become part of your bones
Science

Why titanium can become part of your bones

Titanium implants can bond with bone because their surface quickly forms a thin oxide layer. As bone grows, it attaches to that surface, anchoring the implant…

Discover more
The first guidebooks led pilgrims to holy sites
Culture & entertainment

The first guidebooks led pilgrims to holy sites

The manuals mapped safe routes, warned pilgrims about thieves, and listed shrines with prized relics—guidance for both staying alive and pursuing spiritual…

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