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The warrior monks who ruled a Baltic state
History

The warrior monks who ruled a Baltic state

Religious vows and territorial ambition shared one government: the Teutonic Knights ruled a militarized theocracy around the Baltic and expanded it by force.

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The StarCraft session that lasted 50 hours
Games

The StarCraft session that lasted 50 hours

In 2005, a 28-year-old South Korean man died after a marathon gaming session reported to have lasted about 50 hours, with only short breaks. The story became…

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Mars can be swallowed by planet-wide dust storms
Science

Mars can be swallowed by planet-wide dust storms

A Martian dust storm can spread from one region until dusty air veils the whole planet. The dust blocks much of the sunlight reaching the ground, dimming Mars…

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Vaginal hymen acts as a residual embryological tissue fold
Health

Vaginal hymen acts as a residual embryological tissue fold

The hymen is a small fold of tissue left from embryonic development, not a barrier with a structural job. Its appearance varies, and it cannot reliably tell…

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Ephemerides list absolute coordinates
Myths & mysteries

Ephemerides list absolute coordinates

They give astrologers the positions of celestial bodies over time, which they use to calculate charts. Before digital tools, those calculations meant working…

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Why a remarkable memory can still lose your keys
Health

Why a remarkable memory can still lose your keys

Remembering an object starts when you put it down. If your attention is on a message or the next task, that moment may never be strongly encoded. The problem…

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Ileum directly connects the small and large intestines
Health

Ileum directly connects the small and large intestines

Food and other remaining contents pass through the ileum, the final section of the small intestine, and then cross into the large intestine. The ileum is the…

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Wikipedia grew out of a very different web business
Technology

Wikipedia grew out of a very different web business

Before launching Wikipedia, Jimmy Wales co-founded Bomis, a web portal that earned much of its revenue from premium adult content. The business helped fund…

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Britain once considered a nuclear-powered hovercraft
Transport

Britain once considered a nuclear-powered hovercraft

A nuclear reactor would power the hovercraft’s fans without relying on frequent fuel stops. But a reactor adds heavy shielding and demanding safety rules to a…

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Fourth wall refers to the invisible barrier of a box set
Culture & entertainment

Fourth wall refers to the invisible barrier of a box set

In a proscenium theater, the set's three walls form a room; the invisible fourth wall is the open side facing the audience.

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How penguins could bankrupt your Zoo Tycoon park
Games

How penguins could bankrupt your Zoo Tycoon park

In Zoo Tycoon, some animals bred so quickly that players could return to a penguin exhibit packed with birds—and a spiraling fish bill.

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Ancient Indian philosophy denies your personal existence
Myths & mysteries

Ancient Indian philosophy denies your personal existence

Advaita Vedanta treats individual identity as an illusion: the separate self is not ultimately distinct from the universe. In this view, even personal…

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An early portable computer weighed 24 pounds
Technology

An early portable computer weighed 24 pounds

The Osborne 1, released in 1981, packed a five-inch screen, disk drives, and a keyboard into one transportable case. It was a 'luggable,' not a thin laptop…

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Why splitting tens can ruin a winning hand
Games

Why splitting tens can ruin a winning hand

A pair of 10s already gives you 20, so splitting them trades one strong hand for two that need to draw well.

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Poe’s fictional detective helped make Sherlock Holmes possible
History

Poe’s fictional detective helped make Sherlock Holmes possible

The Murders in the Rue Morgue introduced C. Auguste Dupin in 1841: an eccentric thinker whose reasoning is presented through a companion’s account. That…

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Why Svalbard residents carry guns outdoors
Travel

Why Svalbard residents carry guns outdoors

Beyond Svalbard’s settlements, polar-bear safety is part of planning a trip. The governor requires suitable means of scaring bears away and recommends…

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Micro-divisions creating pure identity chaos
Myths & mysteries

Micro-divisions creating pure identity chaos

Duads are 2.5-degree divisions of the zodiac wheel, used to add another layer of personality interpretation to an astrological profile.

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Aleister Crowley tried to summon the god Pan in Paris and ended up giving his friends a mental breakdown
Myths & mysteries

Aleister Crowley tried to summon the god Pan in Paris and ended up giving his friends a mental breakdown

During the 1913 Paris rituals, one colleague reportedly suffered a psychotic break, while another was found paralyzed in a corner.

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