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 957 / 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
Fallout's deathclaws have chameleons in their fictional family tree
Games

Fallout's deathclaws have chameleons in their fictional family tree

The series' lore traces them to prewar genetic engineering, with Jackson's chameleons among the source animals. They were developed as weapons rather than…

Discover more
Coral castle built by a man using pure harmonics
Myths & mysteries

Coral castle built by a man using pure harmonics

He claimed to know ancient anti-gravity secrets, but reportedly moved the stones with a system of pulleys.

Discover more
A Patent Office fire erased thousands of invention records
Science

A Patent Office fire erased thousands of invention records

The 1836 blaze destroyed nearly 10,000 early U.S. patents. Inventors were asked to help rebuild the archive, but fewer than 3,000 were recovered or…

Discover more
Myths & mysteries

David Bowie stored bodily fluids in his refrigerator

During a paranoid period in the 1970s, Bowie reportedly kept his urine in the refrigerator because he feared invisible forces were stealing his essence.

Discover more
Left-handedness was actively trained out of kids
History

Left-handedness was actively trained out of kids

Schools treated right-handed writing as the only acceptable way to hold a pencil. Some teachers tied left-handed children’s arms behind their chairs or struck…

Discover more
Fire breathing can damage lungs without burning them
Culture & entertainment

Fire breathing can damage lungs without burning them

Fuel accidentally entering the lungs can cause chemical inflammation known as fire-eater's pneumonia. Published cases describe serious illness after…

Discover more
Handcycles turn daily commutes into punishing workouts
Transport

Handcycles turn daily commutes into punishing workouts

Turn the hand pedals and a chain drives the wheel, sending your arms and shoulders down the road. The bike gets you to work while your upper body files a…

Discover more
How marketing emails know when you open them
Economy

How marketing emails know when you open them

A tiny remote image can send a request to the sender's server when an email client loads it. That request can reveal activity associated with the message,…

Discover more
Why enclosed bikes turn into rolling greenhouses
Transport

Why enclosed bikes turn into rolling greenhouses

Sunlight passes through the transparent shell and warms the interior; the rider then adds another heat source while pedaling. If the air has nowhere to…

Discover more
Why fathers mocked Father's Day
History

Why fathers mocked Father's Day

Some men saw Father’s Day as a retail scheme: a holiday designed to make them buy presents for themselves. The gift-giving pitch was harder to sell when Dad…

Discover more
Google's logo redesign had to work somewhere a word wouldn't fit
Economy

Google's logo redesign had to work somewhere a word wouldn't fit

Its 2015 identity update included a four-color G for small spaces as well as the full wordmark. A desktop search page, watch, phone, and microphone prompt…

Discover more
Entire empire covered up by a massive mud flood
Myths & mysteries

Entire empire covered up by a massive mud flood

Believers cite basement windows in old buildings as evidence for the supposed cover-up.

Discover more
Tick removal works best with a grip close to the skin
Health

Tick removal works best with a grip close to the skin

CDC guidance recommends fine-tipped tweezers, grasping the tick near the skin and pulling upward steadily. Squeezing the swollen body, twisting, or trying to…

Discover more
SOS never meant “Save Our Souls”
Science

SOS never meant “Save Our Souls”

SOS was picked because its Morse-code rhythm is easy to send and recognize: dot-dot-dot, dash-dash-dash, dot-dot-dot. It’s a short, unmistakable knock through…

Discover more
Why tech giants buy startups just to shut them down
Economy

Why tech giants buy startups just to shut them down

A tech giant may buy a startup not to use its product, but to stop it from becoming a serious rival. The acquisition can end the competition before the…

Discover more
Why executives hire coaches to process trauma
Economy

Why executives hire coaches to process trauma

A coaching session on the company calendar may become a space for an executive to process childhood trauma. The invoice says management strategy; the…

Discover more
Witch hazel dramatically shrinks localized skin tissue
Health

Witch hazel dramatically shrinks localized skin tissue

Witch hazel contains astringent compounds that can make the skin’s surface feel temporarily tighter. That feeling is not the same as lasting firmness: the…

Discover more
The tricycle designed to keep older riders from falling
Transport

The tricycle designed to keep older riders from falling

Two rear wheels give the tricycle a wide, steady base, so the rider stays upright at a stop without balancing on a skinny line. It trades a bicycle’s quick…

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