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
A jiffy is a real unit of time in physics
In one physics definition, a jiffy is the time light needs to travel one centimeter—about 33 picoseconds. Think of light taking a tiny step and the clock…
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Some trial software trusted a clock the user could change
A simple time check compares the current date with the recorded start of a trial. If that clock moves backward, a poorly protected check can misread how much…
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A running metronome turns stride changes into a rhythm
A slightly quicker beat can help a runner practice taking more steps in the same time, often with shorter strides. The useful cue is the change from that…
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Why having a Plan B can weaken your Plan A
When Plan B is ready, part of your mind may already be stepping toward it. The fallback makes failure feel less costly, which can reduce the commitment that…
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Airline radar altimeters bounce radio waves off the Earth
A radar altimeter sends radio waves downward and times their echo back from the ground. That gives the pilot height above the terrain—not just altitude above…
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A concert's final song can be a race against the venue clock
Noise restrictions and event agreements can impose a firm finishing time, with financial consequences for overrunning. An extended encore therefore has to fit…
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Our solar system moves through the galaxy
As the Sun orbits the galactic center, it carries the planets with it—so Earth is traveling through space even when you're standing still.
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Ninth house pushes long distance travel
Astrologers associate it with higher education as well as long-distance journeys.
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Those giant bridge cables are bundles of tiny wires
A suspension bridge’s main cable is made from many high-strength wires gathered into one enormous bundle. Builders can spin the wires across the gap and bind…
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Subterranean pipes exploit stable earth temperatures for heat
In winter, fluid circulating through buried pipes absorbs heat from the ground; in summer, the system carries building heat back underground.
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Why people reject better systems
Switching systems makes the possible gains feel abstract and the possible losses feel personal. You can picture the routine you’ll have to relearn, the work…
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Milwaukee has a museum full of nodding heads
The National Bobblehead Hall of Fame and Museum collects figures ranging from sports stars to mascots and unusual historical subjects. The same simple…
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A fighter canopy can look golden because it helps hide the cockpit
A thin conductive coating reduces radar energy entering the cockpit and reflecting from its contents. The transparent opening therefore needs to work for…
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Why toilet paper falls apart in water
Toilet paper uses short fibers that separate easily once water soaks them. That makes it break up in pipes instead of traveling as one stubborn wad—the…
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Jaculus is a tiny dragon that throws itself like a dart
In legend, the jaculus is a winged, legless serpent that waits in tree branches, then coils and hurls itself at passing travelers like a living javelin.
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Combining two utensils to fail at both
Its shallow bowl can spill soup, while its short tines struggle to spear salad—an awkward compromise between spoon and fork.
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Why turbulence feels like the sky dropped
When the plane hits sinking air, the aircraft and your seat move downward together. Your inner ear notices the quick shift before your eyes see anything…
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Orange traffic cones rely on highly specific reflective tape
The silver bands are retroreflective: they send headlight beams back toward their source, making the cones easier to see at night.
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Alchemists believed heating glass could literally trap a soul
Alchemists believed sealed glass vessels were needed to keep a volatile spirit from evaporating during attempts to create artificial life.
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Toronto's castle has an 800-foot route to the stables underground
Casa Loma's tunnel connects the main house with its service and stable buildings beneath the intervening street. It is part of a residence designed with…
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When brain damage erases the will to act
When brain damage disrupts the systems that help turn intention into action, even ordinary choices can stop becoming movements. Someone may understand a…
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Commercial aircraft possess highly redundant wiring
Aircraft systems route important wires along separate paths, so one damaged bundle doesn’t silence every control at once. Redundancy means a single bad patch…
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Why adults are dressing up as Shrek
Nostalgia has become a nightlife phenomenon: hundreds of adults paint themselves green, wear ogre ears, and dance to early-2000s pop hits at packed venues.
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You remember conversations by meaning, not wording
Your memory is less like a recording and more like a note that says, “They were annoyed about the schedule.” Later, it rebuilds the conversation from that…
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