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Rome's streets are paved with ancient lava
Rome’s paving stones are basalt, rock formed when lava cools. Cut into blocks, the rough stone grips underfoot and each piece is easy to replace. The city’s…
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A Hawaiian post office mails coconuts as souvenirs
At Hoolehua on Molokai, the Post-a-Nut program lets visitors decorate and address a coconut, then send the shell itself through the mail with postage. No…
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Why supercomputers simulate nuclear explosions
International treaties ban physical nuclear testing, so governments use supercomputers to simulate the microscopic physics of nuclear explosions.
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A cinematic genius feared commercial flying
Kubrick's fear of flying meant crews recreated the jungles of Vietnam outside London instead of traveling to film on location.
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M&M's linked the Mars family to a Hershey connection
Forrest Mars partnered with Bruce Murrie, whose father led Hershey, and their surnames supplied the two M's. The partnership helped secure chocolate and other…
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Fold paper 42 times and it could reach the Moon
Each fold doubles the paper’s layers, so the stack grows by doubling rather than adding one sheet’s thickness at a time. After 42 ideal folds, the math puts…
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Kirk never said Beam me up, Scotty
Kirk said variations such as “Scotty, beam us up,” but never the exact phrase “Beam me up, Scotty” in a Star Trek episode or canonical film. The familiar…
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Goofy and Pluto show two different jobs for a cartoon dog
Goofy wears clothes, speaks, and lives a human-style life; Pluto remains a pet whose gestures carry the performance. Disney uses similar animal origins for…
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One extra s helped sink the wrong company
Companies House mistakenly recorded Taylor & Sons as in liquidation when the order concerned Taylor & Son. The false information spread to credit services and…
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Sacred mountain book hidden in deep caves for centuries
The Tibetan Book of the Dead was reportedly hidden in remote caves for centuries, as a guide meant to help souls navigate illusions in the afterlife.
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Ancients fiercely believed the soul lived in the heart
Egyptian embalmers removed the brain through the nose but preserved the heart, which they regarded as the seat of thought and emotion.
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Aspirin began as bitter willow-bark tea
Long before aspirin tablets, people used willow bark remedies containing salicin. That compound helped point toward the pain-relieving chemistry behind…
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European province built entirely on reclaimed land
Flevoland was created by damming and draining the seabed, exposing hundreds of square miles for farms and towns. Some of the province lies several meters…
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The Lion King hides a medieval death chant
The four-note Dies Irae, a medieval chant associated with Catholic funeral Masses, signals death or doom; composers hide it in scores from The Lion King to…
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A laughter outbreak closed schools without being a case of shared amusement
The episodes began among schoolgirls in Tanganyika in 1962 and included distress and crying as well as laughter. They spread through communities and disrupted…
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France still has a forbidden World War I zone
The Zone Rouge in northeastern France remains restricted because its soil is contaminated with unexploded shells, chemical weapons, and heavy metals.…
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Virtual Falador massacre in online gaming
On June 6, 2006, a RuneScape glitch let players bypass anti-combat rules in Falador, turning the peaceful city into a mass attack. The exploit involved a…
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Why spider silk makes an unusually sensitive microphone
Unlike conventional microphone diaphragms that respond to pressure, spider silk vibrates with moving air particles, making it especially sensitive to sound.
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The fake director who built a terrible filmography
Directors who disowned a film because of studio interference could use the pseudonym Alan Smithee under Directors Guild rules. The fake director accumulated…
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Why Nintendo put a gold seal on its games
After the 1983 video game crash left retailers wary of console games, Nintendo used a licensing system and gold seal to signal that its games had been tested…
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The real-life road maze called Spaghetti Junction
At Birmingham’s Gravelly Hill Interchange, ramps stack and weave so traffic can change roads without crossing every other stream at street level. From above,…
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The plot device that doesn't really matter
A MacGuffin is an object, secret, or goal that characters pursue and that drives the plot, even though its exact nature may matter little to the audience. The…
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Some people have their organs mirrored
Situs inversus is a mirror-image arrangement of major organs, not necessarily a problem with how they work. That is why someone can feel entirely well and…
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How scientists rank the power of alien civilizations
This scale ranks civilizations by how much energy they can use, not how clever they are. A Type I civilization can harness energy on a planetary scale, and…
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