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How railway dining cars became American diners
Transport

How railway dining cars became American diners

Nothing screams mid-century American aesthetic like eating greasy pancakes inside repurposed mass transit. In the early 1900s, clever restaurateurs realized…

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At speed, a bicycle can balance without a rider
Science

At speed, a bicycle can balance without a rider

Your bike never actually needed you to stay upright. Once pushed past a certain speed, the geometry of the steering axis and the gyroscopic effect of the…

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The flower that supplies a powerful insecticide
Economy

The flower that supplies a powerful insecticide

The ultimate weapon against household bugs is a charming white flower. Pyrethrum, extracted from the seed cases of a specific chrysanthemum relative, acts as…

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The parrot whose words were used in court
History

The parrot whose words were used in court

If a bird mimics a sound, it is obviously a highly reliable eyewitness. Legal officials seriously attempted to use a squawking parrot's random repeated…

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Send a broken Zippo back—and they'll fix it
Economy

Send a broken Zippo back—and they'll fix it

In an era where companies charge you a subscription just to use the heated seats in your vehicle, Zippo continues a bizarre archaic tradition. Since 1932,…

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The fake paratroopers dropped before D-Day
Transport

The fake paratroopers dropped before D-Day

Psychological warfare is best executed with terrifying toys. Before the Normandy invasion, the Allies dropped hundreds of burlap sacks stuffed with straw and…

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Rust doesn’t cause tetanus—the dirt does
Health

Rust doesn’t cause tetanus—the dirt does

The rust itself is totally innocent. Tetanus is caused by Clostridium tetani, a bacteria that happens to love hanging out in dirt and manure. The rusty nail…

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Natural disasters wipe out decades of development
Economy

Natural disasters wipe out decades of development

Because a single hurricane can erase generations of progress. The sheer destructive force of extreme weather annihilates physical progress and forces…

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Lead is notoriously sweet but highly toxic
Myths & mysteries

Lead is notoriously sweet but highly toxic

Capricorn is associated with lead, a dense and heavy metal. The ancient Romans loved it because it tastes surprisingly sweet, right before it causes severe…

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Why TV finales once made water pressure plunge
Culture & entertainment

Why TV finales once made water pressure plunge

When an insanely popular television event ends, public infrastructure suffers. During legendary broadcast finales in the 1980s, millions of people held it in…

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Labyrinths force walkers into boring circles
Myths & mysteries

Labyrinths force walkers into boring circles

Finding pure enlightenment by walking in tiny, frustrating circles. Labyrinths force seekers to walk incredibly slow, winding paths just to reach the center,…

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Specific heat capacity determines warming speeds
Science

Specific heat capacity determines warming speeds

Not all substances react to heat equally. Some materials are thermodynamic sponges, demanding immense amounts of energy to raise their temperature slightly,…

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Numerologists honestly believe the universe is controlled by repeating patterns of the number nine
Myths & mysteries

Numerologists honestly believe the universe is controlled by repeating patterns of the number nine

Imagine thinking the secrets of the cosmos could be unlocked by basic elementary school math. Numerologists are obsessed with the number nine, claiming it…

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Why Quentin Tarantino keeps filming bare feet
Culture & entertainment

Why Quentin Tarantino keeps filming bare feet

Auteurs have 'signatures'; some like sweeping long takes, others like dramatic lighting, and Quentin Tarantino aggressively likes toes. From Uma Thurman in…

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The bicycle that sent riders flying over its handlebars
Transport

The bicycle that sent riders flying over its handlebars

Before the glorious invention of chain gears, the only mathematical way to go faster on a bike was to make the front wheel comically huge. The horrifying…

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The tragic face that inspired the Joker's grin
Culture & entertainment

The tragic face that inspired the Joker's grin

The most terrifying laughing menace in graphic history owes his entire look to a depressing romantic melodrama. The iconic stretched grin of the Joker was…

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Cassini discovered Saturn's rings weren't solid
Science

Cassini discovered Saturn's rings weren't solid

Early astronomers stubbornly thought the ring around Saturn was one completely solid, unyielding disk of material. Giovanni Cassini noticed distinct dark gaps…

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Placidus became the default house system primarily because the Catholic Church had a strict monopoly on printing
Myths & mysteries

Placidus became the default house system primarily because the Catholic Church had a strict monopoly on printing

If you have ever stared at your birth chart and wondered why some astrological houses are mathematically massive while others are tiny slivers, you can blame…

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