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
Some stars orbit so closely they steal material
In a close pair of stars, one can pull gas away from its companion. The gas often spirals into a hot disk around the receiving star instead of falling…
Discover more
Snowboards utilize curved edges to carve into slopes
When a rider tilts the board and puts weight on it, its inward-curving edges help it bend into an arc. That edge cuts a curved path through the snow instead…
Discover more
Pharmaceutical grading requires higher purity than food
A purity grade sets limits on what else can be in an ingredient, not just what the ingredient is. USP standards restrict contaminants such as heavy metals…
Discover more
Red walkways make green landscaping stand out
Reddish pavement contrasts with the grass and planting around it, adding a strong color boundary to a theme-park scene. The ground becomes part of the visual…
Discover more
Why fairground hammers are so hard to hit
A heavy sledgehammer can weigh more than a toddler, and untrained players often miss the center plate.
Discover more
Bubble wrap production seals air between plastic
Bubble wrap looks like a sheet of air, but making it takes two layers of polyethylene and machinery to line up and seal each pocket. The packaging can be…
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.
NASA studies the Atacama as a rehearsal for Mars
Some of the desert’s driest soils preserve traces of past microbial life even where living organisms are extremely scarce. Researchers use those conditions to…
Discover more
Why film crews destroy brand-new clothes
Wardrobe crews tumble new clothes with heavy rocks in industrial cement mixers to make them look worn and suited to a gritty survival story.
Discover more
The strange psychoanalytic theory behind male insecurity
Psychoanalyst Karen Horney proposed “womb envy”: the idea that men might feel insecure about their inability to bear children and compensate by pursuing…
Discover more
Why films shoot in freezing locations
Local tax rebates can be worth millions, so studios may shoot in a cold, overcast region even when a story is set in sunny California.
Discover more
A bigger animal doesn't get proportionally bigger muscles
Double an animal's dimensions and its volume grows eightfold, while the cross-sectional area of a muscle grows only fourfold. That mismatch helps explain why…
Discover more
Why some backpacks are carried on your forehead
A forehead strap, called a tumpline, transfers a pack’s weight through the head and upper back. It frees the hands and lets experienced porters carry loads…
Discover more
Panniers hang symmetrically on either side of a pack animal
Panniers hang on both sides so their weight stays balanced around the animal’s back. A matched load is easier to carry and less likely to pull the pack…
Discover more
Orally disintegrating tablets dissolve upon mere contact
The tablet crumbles on contact with saliva, releasing its contents in your mouth instead of asking you to swallow it whole. The useful distinction: it…
Discover more
A horse can miss what is right under its nose
Side-facing eyes give horses a broad view for spotting threats, but leave blind areas directly behind them and very close in front of the face. Moving the…
Discover more
Brown dwarfs are stars that never ignited
Brown dwarfs shine without sustaining the hydrogen fusion that powers the Sun. Some briefly fuse deuterium, a heavier kind of hydrogen, but much of their…
Discover more
Balancing primal urges and strict rules causes panic
Imagine wanting something intensely and believing that wanting it makes you bad. The urge pulls one way; the rule yanks the other, leaving no easy move. That…
Discover more
Why movie reels once traveled under armed guard
Studios used armed couriers and handcuffed heavy film canisters to their wrists to prevent piracy before major worldwide releases.
Discover more
Sticky notes began with a glue that failed
3M chemist Spencer Silver was trying to make a strong adhesive, but his glue barely held. Years later, colleague Art Fry used that weak, removable stickiness…
Discover more
Dropping pins points directly toward future success
In this divination practice, a pin landing point-away is read as an open path to success; point-toward-you is taken as a warning about the future.
Discover more
Polystyrene windows double envelope production costs
The paper envelope needs a hole, a plastic window, and an extra assembly step. The little see-through patch costs more to make than an envelope with no window.
Discover more
Disney's carefully kept greenery is not always alive
Reports from Disney properties document artificial turf replacing or renewing grassy-looking spaces. It can preserve a designed appearance in places where…
Discover more
A mechanical watch can keep different time in different positions
Gravity acts differently on the balance assembly depending on how the watch is oriented. Tiny imperfections therefore show up as gains or losses that vary…
Discover more
Lacking any biological capacity to care about others
Some people experience little emotional response to other people’s suffering. They may still understand that someone is frightened or hurt, but that knowledge…
Discover more