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
Roller bandages were invented by an ancient Greek surgeon
A strip of cloth is awkward to manage while treating an injury, so Hippocrates advised rolling it up beforehand. That simple preparation made it easier to…
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The Red Cross is a Swiss flag with its colors swapped
The red cross on white reverses Switzerland's white cross on red. The design honors the country where the movement began while providing a simple,…
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Blind man's bluff guarantees bruised shins
With their eyes covered, players have to find one another by feel and sound, making furniture corners an unfortunate obstacle.
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Close your eyes and your hands may seem to drift
You usually know where your hands are through a mix of sight and body sensation. Close your eyes and one source of information disappears; the remaining…
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Temporarily losing the ability to taste sweetness
After chewing Gymnema leaves, a spoonful of sugar can lose its sweetness for a while. Compounds in the leaves interfere with the tongue’s sweet-taste…
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Your lost golf ball may already have a second life
Divers pull millions of lost golf balls from course ponds, clean them and sell them again. Then amateur golfers send many of those balls right back into the…
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Hockey opened the ice by loosening forward-passing rules
Early restrictions forced teams to carry the puck forward or pass sideways and backward. The NHL expanded permission in stages, including the attacking zone…
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Salvia targets the exact opposite of dopamine receptors
Salvia targets kappa-opioid receptors rather than dopamine receptors, and its effects can include dysphoria, confusion, and the unnerving feeling that you've…
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How machines turn humid air into drinking water
Cooling coils lower humid air below its dew point, making water condense; the collected water is then filtered for drinking.
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Why shadow tag makes children crash into things
Players stare at the ground while sprinting to stomp on a shadow, so they may not see trees, poles, or other players in their path.
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The first stethoscope started as a paper tube
The paper tube carried the sound of the patient's chest to Laënnec's ear while keeping some distance between them. That simple workaround let him listen…
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Ancient Romans used syringes for ointments
A Roman syringe worked by pushing a piston through a tube, forcing thick medicinal paste out the other end. It was less a modern needle than a hand-powered…
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Mr. Clean began as a magic-cleaning character
Illustrator Richard Black was asked to develop a genie-like figure for the product. The bald head, muscular build, and earring produced a character who could…
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Swinging between structures on heroic webs
A web under tension holds the swinger while forward speed carries them through a pendulum arc. At the bottom, speed is greatest; climbing toward the next…
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Pulse oximeters calculate oxygen using red light absorption
The clip compares how oxygenated and deoxygenated blood absorb red and infrared light, then uses the difference to estimate blood oxygen levels.
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High-waisted trousers can make legs start higher than they do
Raising the visible waistband changes the proportions of the outfit, especially when a jacket hides the actual join between torso and legs. The eye follows…
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Medical chart clipboards were created to organize wards
A spring clip kept each patient’s papers together right at the bedside. In a busy ward, that simple clamp made it harder for one person’s chart to wander into…
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A bridesmaid dress is chosen for a group, then kept by one person
Its color and cut have to work within someone else's wedding plan, often alongside several other outfits. After the event, it must fit a different job: the…
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A faulty pain channel can leave injuries without their warning signal
Some variants of the SCN9A gene prevent a sodium channel in pain-sensing nerves from working normally. Signals that should announce an injury then fail to…
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A beer pong ball's disgusting journey
A beer pong ball can roll through spilled drinks, sticky residue, and shoe dirt before landing in a cup of beer someone is expected to drink. The game turns…
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Edible plant-based coatings trap moisture in fresh produce
Some companies spray produce with an invisible, tasteless coating made from plant lipids. It slows moisture loss and oxidation, helping fruits and vegetables…
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UV disinfection attacks a microbe's ability to reproduce
Ultraviolet light damages microorganisms' genetic material so they cannot multiply normally. A properly designed system can disinfect clear water without…
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The hidden chamber pots inside old hospital cabinets
The lower compartment was built with ventilation and enough room to keep a chamber pot out of sight. In a hospital room, that meant visitors could sit with a…
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The Times Square ball sits on the roof all year
It stays atop the One Times Square building between New Year’s Eve celebrations, rather than being hauled away after its annual drop.
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