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 289 / 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 driver merging late may be helping traffic
Transport

The driver merging late may be helping traffic

Using both lanes up to the bottleneck and taking turns to merge makes better use of the road. Blocking late mergers can make the backup worse.

Discover more
Satellite dishes parabolic shapes focus faint radio waves
Technology

Satellite dishes parabolic shapes focus faint radio waves

The dish’s curve reflects weak incoming radio waves toward a receiver at its focal point, where they can be detected.

Discover more
When armor turned a fall into a death trap
History

When armor turned a fall into a death trap

Armor could protect a knight while he was standing; after a fall in mud, 50–60 pounds of metal made getting up—and sometimes breathing—much harder. The same…

Discover more
The VW bus began with a sketch of a factory workhorse
Transport

The VW bus began with a sketch of a factory workhorse

Dutch importer Ben Pon saw a vehicle moving parts around Volkswagen's factory and sketched the idea for a compact transporter in 1947. The resulting Type 2…

Discover more
Superposition uniquely allows multiple waves to overlap
Science

Superposition uniquely allows multiple waves to overlap

Noise-canceling headphones listen to incoming sound and play a matching wave turned upside down. Where the two meet, peaks fill troughs and cancel; move away,…

Discover more
Plinking exploits input windows to link impossible combos
Games

Plinking exploits input windows to link impossible combos

A player taps two buttons a fraction of a second apart so the game registers the primary attack twice, making a difficult combo easier to land.

Discover more
Clerical errors completely ruin profiles
Myths & mysteries

Clerical errors completely ruin profiles

A county clerk selecting “morning” instead of “evening” could flip a generated profile, making its personality claims hinge on a simple data-entry error.

Discover more
Shoko Asahara convinced thousands he could levitate by publishing a photo of him simply jumping
Myths & mysteries

Shoko Asahara convinced thousands he could levitate by publishing a photo of him simply jumping

A blurry photo in an occult magazine showed him hopping while seated cross-legged. He presented it as proof of levitation, and it helped attract thousands to…

Discover more
Culture & entertainment

Catwoman's sleek suit was a production problem for Pfeiffer

Getting Michelle Pfeiffer into the Batman Returns costume involved powder and a tight latex fit. She later described the result as vacuum-packed and said it…

Discover more
Kingda Ka launched riders at 128 miles per hour
Culture & entertainment

Kingda Ka launched riders at 128 miles per hour

The New Jersey coaster used a powerful hydraulic launch to send its train up a 456-foot tower. It operated from 2005 until 2024, when its record-setting era…

Discover more
Lilo and Samara were played by the same actress
Culture & entertainment

Lilo and Samara were played by the same actress

Daveigh Chase voiced Lilo in Lilo & Stitch and played Samara in the 2002 horror film The Ring. She went from a sweet Hawaiian girl to the ghost who crawls out…

Discover more
Venice pushed giant cruise ships away from its postcard skyline
Travel

Venice pushed giant cruise ships away from its postcard skyline

Italy's 2021 restrictions barred large ships from key historic waterways, including the Giudecca Canal and St. Mark's Basin. Their movement, emissions, and…

Discover more
Dead Sea water destroys standard boats due to extreme salt
Myths & mysteries

Dead Sea water destroys standard boats due to extreme salt

The water's extreme salinity can corrode standard marine engines and quickly rot wooden hulls, making ordinary boats impractical.

Discover more
Chinese bamboo seating adapts to brutal summer heat
History

Chinese bamboo seating adapts to brutal summer heat

Tightly woven bamboo or rattan lets air pass through instead of trapping heat and moisture against the body, making it cooler than upholstered seating in…

Discover more
Can donating blood really burn 650 calories
Health

Can donating blood really burn 650 calories

After blood is donated, the body has to make replacement cells and proteins and restore plasma. Those rebuilding jobs use energy, and adding them up produces…

Discover more
Listening to music enhances memory encoding
Psychology

Listening to music enhances memory encoding

Music can give a memory something extra to latch onto: rhythm, mood, or a distinctive sound linked to the moment you learned it. Those cues can help…

Discover more
Karl Marx earned a living writing for a capitalist newspaper
History

Karl Marx earned a living writing for a capitalist newspaper

While living in London, Marx worked as a European correspondent for the New York Daily Tribune from 1851 to 1862. He and Friedrich Engels supplied hundreds of…

Discover more
Why 1950s meals were set in gelatin
History

Why 1950s meals were set in gelatin

Hosts molded tuna, hot dogs, and canned vegetables into gelatin rings to make familiar ingredients look like a polished centerpiece. The result was dinner…

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