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 443 / 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 keyboard letters that won't rub off
Technology

The keyboard letters that won't rub off

On high-end keycaps, the letters are made from a second colored plastic molded through the cap, so they won't rub off through typing.

Discover more
Bitter flavors are intense Saturn tastebud torture
Myths & mysteries

Bitter flavors are intense Saturn tastebud torture

Without sugar, black tea's bitterness stays front and center—a small reminder that not everything has to be sweet.

Discover more
How one review point can cost a studio its future
Games

How one review point can cost a studio its future

Some publishers tie bonuses to aggregate review scores, so a team may be laid off for an 84 when the cutoff is 85, despite releasing a generally solid hit.

Discover more
Barcelona cuts corners to give intersections more room
Travel

Barcelona cuts corners to give intersections more room

Ildefons Cerdà's Eixample plan bevels the corners of its square blocks, turning each junction into a broader open space. Vehicles gain room to turn, and…

Discover more
Giordano Bruno was burned at the stake for claiming the universe was infinite and filled with magic
Myths & mysteries

Giordano Bruno was burned at the stake for claiming the universe was infinite and filled with magic

His case involved more than cosmology: Bruno also embraced Hermetic magic and other beliefs the Inquisition condemned.

Discover more
A katana's edge-up position made the draw part of the action
History

A katana's edge-up position made the draw part of the action

Worn through the sash with its edge upward, the sword could be drawn into a cut rather than first being removed and repositioned. This differed from the…

Discover more
Why people burn fake money for the afterlife
Economy

Why people burn fake money for the afterlife

In some traditions, families burn realistic-looking paper money in high denominations as an offering to deceased relatives. The bills are meant for the…

Discover more
Classical labyrinths feature exactly eleven concentric paths
Myths & mysteries

Classical labyrinths feature exactly eleven concentric paths

Its eleven circuits form one winding route to the center, not a branching maze designed to trap you. The repeated turns are meant to encourage a state of…

Discover more
The chess move that moves two pieces
Games

The chess move that moves two pieces

Castling shifts the king to safety while repositioning a rook, all in a single turn.

Discover more
Wiper fluid reservoirs hide deep inside cramped engine bays
Transport

Wiper fluid reservoirs hide deep inside cramped engine bays

The washer-fluid tank needs room, but the engine bay is already packed with the engine, cooling system, and wiring. Designers tuck the reservoir into a spare…

Discover more
Why one scary story outweighs a thousand safe flights
Psychology

Why one scary story outweighs a thousand safe flights

A crash is emotionally loud; a safe landing is usually just the end of a trip. Because vivid threats stick in memory, one scary story can dominate your gut…

Discover more
The hotel room with no walls or roof
Travel

The hotel room with no walls or roof

The Null Stern hotel offers a double bed set outdoors in the Swiss Alps, with a butler and mountain views. With no walls or roof, guests sleep exposed to the…

Discover more
The satellite switch that launched geocaching
Games

The satellite switch that launched geocaching

The geocaching craze began in 2000, when the U.S. government ended deliberate degradation of GPS signals for civilian users, improving location accuracy.

Discover more
Uhlenbeck theorized that electrons spin exactly like tops
Science

Uhlenbeck theorized that electrons spin exactly like tops

Electrons act as if they carry a tiny magnetic moment, and physicists describe the underlying quantum property as spin. But an electron isn’t a little sphere…

Discover more
Apollo astronauts packed a slide rule beside their computers
History

Apollo astronauts packed a slide rule beside their computers

The crews carried a small metal Pickett slide rule for routine calculations, while onboard and ground computers handled critical guidance work. The Apollo 13…

Discover more
Tourists are named for going in circles
Science

Tourists are named for going in circles

The word “tourist” grew from “tour,” meaning a journey or circuit. Trace “tour” back through French and Latin and you reach Greek *tornos*, linked to a…

Discover more
How electrons repel each other without touching
Science

How electrons repel each other without touching

Electrons push one another through their electric fields, which reach across the space between them. Think of two magnets nudging apart without ever meeting:…

Discover more
Head lice die quickly away from a warm scalp
Science

Head lice die quickly away from a warm scalp

Head lice need two things their usual home supplies: warmth from the scalp and regular access to blood. Away from a person, they dry out and usually die…

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