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Six Flags is named after six claims to Texas
The original park's name refers to Spain, France, Mexico, the Republic of Texas, the United States, and the Confederacy. Those flags represented different…
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Why trolls supposedly turn to stone in sunlight
In the tale, sunlight petrifies trolls, turning the boulders scattered across the landscape into the creatures caught by dawn.
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France made after-hours work messages a labor issue
The right to disconnect brought digital availability into workplace negotiations. Employers and employee representatives covered by the rules must address how…
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In France, private firms run the highways
Drivers pay at toll gates to use France’s autoroutes, which private consortia operate. A highway trip comes with a direct charge at the gate.
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Instagram grew out of an app with too many features
Its predecessor, Burbn, mixed location check-ins, social plans, and photo sharing. The founders stripped the idea down around photographs instead of keeping…
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Korean paper craft Hanji is heavily treated to resist water
Made from mulberry bark and repeatedly pounded, Hanji was durable enough to cover floors and seal windows, as well as withstand exposure to the elements.
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Yelp forced restaurant owners to beg patrons for good stars
Yelp gave angry diners a public megaphone, making even a complaint about a cold bowl of soup feel like a threat to a restaurant's livelihood.
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Spheres pack perfectly tightly into twenty-four dimensions
A sphere in the 24-dimensional Leech lattice has 196,560 touching neighbors, compared with 12 in a tight packing in three dimensions. The sphere hasn’t…
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How a twisted loop ends up with one side
The half-twist joins the strip’s two faces into one unbroken surface. Trace it with a finger and you’ll cross from what looked like one side to the other…
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Why plywood doesn't warp like ordinary wood
The thin wood layers are arranged with their fibers perpendicular to the next layer, giving the panel greater dimensional stability and helping it resist…
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Ichthyomancy relies on twitching fish entrails
Ancient seers treated fish entrails as omens, making this an especially visceral form of divination.
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Lithomancy tosses precious stones to get advice
Practitioners read the stones' positions after a toss as signs or advice, turning their landing spots into a divination reading.
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A student sold a million pixels instead of one ad space
Alex Tew's Million Dollar Homepage divided a webpage into purchasable blocks priced at a dollar per pixel. Buyers received a tiny piece of a shared online…
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Kyoto's famous rock garden makes fifteen stones hard to see at once
At Ryoanji, stones sit in groups across a small field of raked gravel. From the usual viewing area, their overlap hides part of the arrangement, so changing…
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Shuudan Koudou is a synchronized walking performance
Some routines send as many as 50 people briskly past one another without a collision.
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A Klein bottle has one surface but no separate inside
It is a two-dimensional mathematical surface that can be embedded without self-intersection in four-dimensional space. A glass model in our three-dimensional…
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Darts throwers stand behind a perfectly measured oche
The throwing line is 7 feet, 9¼ inches from the board, and players must avoid crossing it as they throw.
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How firefighting planes refill from lakes
The aircraft skims a lake and lowers small scoops beneath its hull. Water pressure forces lake water into onboard tanks as the plane speeds along, so it…
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Korean festival Chuseok involves eating half moon rice cakes
Songpyeon, the half-moon rice cakes eaten during Chuseok, are often steamed over pine needles. The needles add a subtle aroma and help keep the cakes from…
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Why you overestimate places you've heard of
A place name that comes to mind quickly feels familiar, and familiarity can be mistaken for knowledge. You may feel as if you know a city simply because…
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A Spanish festival has a devil-costumed jumper leap over babies
At El Colacho in Castrillo de Murcia, infants lie on mattresses while a costumed participant jumps over them. The local tradition links the ritual to…
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A Japanese tea ceremony can last four hours
A formal Japanese tea gathering can take hours because the tea is only one part of the event. Guests may share a meal, pause between stages, and be served…
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Some French playing-card kings have historical names
In the Paris pattern, the king of diamonds is named Caesar, while the king of spades is David. The names belong to that card tradition rather than every deck.…
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Weird information sticking in the brain much longer
A strange detail has less competition in memory than the hundred ordinary ones around it. It grabs attention, gets linked to its odd features, and becomes an…
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