The world is more interesting than you think.
Unexpected facts, big ideas, and little discoveries. Find something that sparks your curiosity today.
A little more wonder
Why are the walls of massive underground vehicular tunnels almost always lined with shiny ceramic tiles?
Why are the walls of massive underground vehicular tunnels almost always lined with shiny ceramic tiles?
Discover more
Which common assumption about breathing the recycled air inside an airplane is entirely false?
Which common assumption about breathing the recycled air inside an airplane is entirely false?
Discover more
What are those tiny, transparent worm-like squiggles you sometimes see floating when looking at a bright sky?
What are those tiny, transparent worm-like squiggles you sometimes see floating when looking at a bright sky?
Discover more
What happened to the 19th-century doctor who first proved that washing hands could stop the spread of fatal diseases?
What happened to the 19th-century doctor who first proved that washing hands could stop the spread of fatal diseases?
Discover more
While most European witch hunts violently targeted women, who made up the vast majority of executed witches in 17th-century Iceland?
While most European witch hunts violently targeted women, who made up the vast majority of executed witches in 17th-century Iceland?
Discover more
Why do many air traffic control facilities discreetly feature darkened, quiet "fatigue rooms"?
Why do many air traffic control facilities discreetly feature darkened, quiet "fatigue rooms"?
Discover more
STACKY FOR IPHONEA bigger world.
One discovery
at a time.
Keep discovering with Stacky. Interesting facts in an app that is always within reach.
Which of these terrifying digital realities remains completely true even when you browse in 'Incognito Mode'?
Which of these terrifying digital realities remains completely true even when you browse in 'Incognito Mode'?
Discover more
We casually joke about feeling nostalgic, but how did doctors actually treat "nostalgia" in the 17th century?
We casually joke about feeling nostalgic, but how did doctors actually treat "nostalgia" in the 17th century?
Discover more
Why is green universally used as the "go" signal on modern traffic lights worldwide?
Why is green universally used as the "go" signal on modern traffic lights worldwide?
Discover more
Despite what everyone assumes, what is your stomach actually doing when it makes loud, embarrassing growls?
Despite what everyone assumes, what is your stomach actually doing when it makes loud, embarrassing growls?
Discover more
It defies all basic common sense, but under certain conditions, why does boiling hot water freeze faster than cold?
It defies all basic common sense, but under certain conditions, why does boiling hot water freeze faster than cold?
Discover more
If a husband and wife in medieval Germany had an unsolvable dispute, how did the law legally allow them to settle it?
If a husband and wife in medieval Germany had an unsolvable dispute, how did the law legally allow them to settle it?
Discover more
Why do modern physical casinos heavily use digital voucher slips instead of traditional metal coins for slot payouts?
Why do modern physical casinos heavily use digital voucher slips instead of traditional metal coins for slot payouts?
Discover more
If a commercial airplane were to crash, statistically, where is the absolute safest place to be sitting?
If a commercial airplane were to crash, statistically, where is the absolute safest place to be sitting?
Discover more
What hidden financial trick do companies use when promoting junior employees to a Manager title without a raise?
What hidden financial trick do companies use when promoting junior employees to a Manager title without a raise?
Discover more
Why are modern car manufacturers suddenly so desperate to connect your vehicle to the internet and smartphone apps?
Why are modern car manufacturers suddenly so desperate to connect your vehicle to the internet and smartphone apps?
Discover more
What terrifying mental delusion completely convinced King Charles VI of France that he couldn't let anyone touch him?
What terrifying mental delusion completely convinced King Charles VI of France that he couldn't let anyone touch him?
Discover more
What is the real economic reason consumer electronics companies stopped making phones with removable batteries?
What is the real economic reason consumer electronics companies stopped making phones with removable batteries?
Discover more
How does an ibuprofen pill actually know exactly where your massive headache or twisted ankle is located?
How does an ibuprofen pill actually know exactly where your massive headache or twisted ankle is located?
Discover more
Why do high-achievers so frequently come down with a sudden illness on the first day of vacation?
Why do high-achievers so frequently come down with a sudden illness on the first day of vacation?
Discover more
The globally recognized Hollywood sign in Los Angeles wasn't built for the film industry. What was its original purpose?
The globally recognized Hollywood sign in Los Angeles wasn't built for the film industry. What was its original purpose?
Discover more
When you hear the absolutely stomach-churning sound of bones breaking in an action movie, what are you actually hearing?
When you hear the absolutely stomach-churning sound of bones breaking in an action movie, what are you actually hearing?
Discover more
What is currently the single most expensive and time-consuming thing for visual effects artists to CGI in a movie?
What is currently the single most expensive and time-consuming thing for visual effects artists to CGI in a movie?
Discover more
If you want to check if you are currently dreaming, why is looking at your phone a foolproof test?
If you want to check if you are currently dreaming, why is looking at your phone a foolproof test?
Discover more