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 72 / 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
Your brain changes throughout the menstrual cycle
Health

Your brain changes throughout the menstrual cycle

Hormone levels fluctuate across the cycle, and the brain responds: regions including the hippocampus and amygdala can change in volume. Those areas are…

Discover more
Why OLED screens can develop ghost images
Technology

Why OLED screens can develop ghost images

Static menus keep the same pixels lit longer, so those pixels age faster than neighboring ones. The uneven wear can leave a persistent image on the screen.

Discover more
The phone that brought iTunes before the iPhone
Technology

The phone that brought iTunes before the iPhone

The 2005 Motorola ROKR E1 could play iTunes songs before the iPhone existed, but it held just 100 tracks and was widely considered clunky.

Discover more
Older records describe a first sleep and a second sleep
Health

Older records describe a first sleep and a second sleep

Historian A. Roger Ekirch found repeated references to waking between two stretches of nighttime sleep, with time for conversation, prayer, or other quiet…

Discover more
Why spelling bees feel like live psychological thrillers
Culture & entertainment

Why spelling bees feel like live psychological thrillers

The tension comes from watching a child spell under live pressure: one misplaced vowel can turn an ordinary school exercise into a televised nail-biter.

Discover more
Virgo placements mentally organize every cluttered room
Myths & mysteries

Virgo placements mentally organize every cluttered room

In astrology, Virgo placements are often portrayed as mentally sorting a messy room at a glance—and quietly deciding what should be tossed.

Discover more
The hidden bar that keeps your spacebar level
Technology

The hidden bar that keeps your spacebar level

A stabilizer bar under the spacebar links its ends, keeping one side from popping up when you press the other.

Discover more
Swedish meatballs have a paper trail older than the furniture store
Travel

Swedish meatballs have a paper trail older than the furniture store

Cajsa Warg's 1755 cookbook contains an early recorded Swedish meatball recipe. The dish's modern fame can hide how long it has belonged to home cooking and…

Discover more
Dense matter making everyone stubbornly boring
Myths & mysteries

Dense matter making everyone stubbornly boring

In astrology, earth signs are associated with grounded, practical traits: paying bills, choosing sensible shoes, and digging in their heels during arguments.

Discover more
Free floating electrons are why metals conduct electricity
Science

Free floating electrons are why metals conduct electricity

The electrons that power a lamp move surprisingly slowly through the wire. What travels quickly is the electric field, which sets electrons moving throughout…

Discover more
Watching spiders build webs predicts the weather
Myths & mysteries

Watching spiders build webs predicts the weather

Arachnomancy reads the speed and shape of spiders’ webs as signs of coming weather, including rain.

Discover more
Vatican medical board requires four secular doctors
Myths & mysteries

Vatican medical board requires four secular doctors

Before a healing can be considered a miracle, a Vatican medical board of four secular doctors examines the case and tries to rule out a medical explanation.

Discover more
Vegemite began as brewery waste
Travel

Vegemite began as brewery waste

The salty spread was developed to use up leftover sediment from beer production, turning brewery byproduct into something people could spread on toast.

Discover more
Submerging names in honey makes people sweeter
Myths & mysteries

Submerging names in honey makes people sweeter

In a folk-magic practice, a person’s name is written on paper and submerged in honey to sweeten their attitude toward the practitioner.

Discover more
Alimony payments ruin personal finances
Economy

Alimony payments ruin personal finances

A court can turn a breakup into a bill that lasts for years. The spouse ordered to pay support has to keep covering it long after the marriage ends.

Discover more
Sagittarius signs relocate to avoid tiny conflicts
Myths & mysteries

Sagittarius signs relocate to avoid tiny conflicts

A mildly awkward exchange at the grocery store can be enough to send them packing across the country rather than deal with it.

Discover more
Plucked goose plumage provides ultimate thermal insulation
Economy

Plucked goose plumage provides ultimate thermal insulation

Goose down keeps heat in by trapping pockets of air in its fluffy undercoat. That is why it works as insulation in mountaineering gear.

Discover more
Kodak's 1975 digital camera saved its pictures to cassette
Technology

Kodak's 1975 digital camera saved its pictures to cassette

Steve Sasson's prototype weighed about eight pounds and needed roughly 23 seconds to record a 100-by-100-pixel image. The picture then had to be played back…

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