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Evangelion's religious imagery had more than one job
Culture & entertainment

Evangelion's religious imagery had more than one job

Assistant director Kazuya Tsurumaki described Christian imagery as a way to make the series look distinctive and mysterious to its original audience. Crosses…

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Hyperloop's central trick is to make the air get out of the way
Transport

Hyperloop's central trick is to make the air get out of the way

At high speed, pushing through air consumes enormous energy. A low-pressure tube reduces that resistance around the vehicle, which is why the tube matters as…

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The Panama Canal's newer locks reuse most of their water
Transport

The Panama Canal's newer locks reuse most of their water

Water-saving basins beside the expanded locks store water during part of the cycle and return it when needed. The Canal Authority says the design reuses about…

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Archegos borrowed exposure until falling prices forced a fire sale
Economy

Archegos borrowed exposure until falling prices forced a fire sale

Bill Hwang's firm used swaps to take huge stock positions through multiple banks. When prices fell in 2021, demands for more collateral became impossible to…

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The jars eunuchs kept for the afterlife
History

The jars eunuchs kept for the afterlife

Eunuchs sealed their severed body parts in baosheng jars because they feared dying incomplete would mean being reborn as a female mule. Burying the jars with…

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Drought insurance can miss the farmer whose crops actually fail
Economy

Drought insurance can miss the farmer whose crops actually fail

Index insurance pays when a measured indicator crosses a threshold, not after inspecting every individual loss. Satellite or regional data can therefore…

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Pandemic bonds paid investors while Ebola relief went unfunded
Economy

Pandemic bonds paid investors while Ebola relief went unfunded

The bond contracts required outbreaks in multiple countries to meet strict thresholds before relief money could flow. Ebola in the DRC fell short, so…

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Why some people living with high radiation show extra DNA repair
Health

Why some people living with high radiation show extra DNA repair

Radiation can damage DNA, so cells use repair machinery to fix some of that damage. Researchers have reported higher DNA-repair activity in some residents of…

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Why The Polar Express feels so unsettling
Psychology

Why The Polar Express feels so unsettling

The movie’s characters are realistic enough to trigger your social radar, but not quite convincing enough to satisfy it. When eyes, expressions, and movement…

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Researchers detected oxygen where no sunlight reaches
Science

Researchers detected oxygen where no sunlight reaches

Experiments on the deep seafloor reported oxygen increasing around metal-rich nodules. One proposed explanation is that electrical differences across the…

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Civilization VI leaders possess hidden agendas that trigger sudden diplomatic betrayals
Games

Civilization VI leaders possess hidden agendas that trigger sudden diplomatic betrayals

Each leader has a historical agenda and a second, secret agenda randomized for each match. You might satisfy a leader’s public love of culture only to run…

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Gold can change owners without moving an inch
Economy

Gold can change owners without moving an inch

At the Bank of England, customers can trade bars already held in its vaults. The bank changes the recorded owner while the metal stays where it is. The…

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Japanese monk Kukai achieved enlightenment by staring relentlessly at a single glowing Sanskrit letter
Myths & mysteries

Japanese monk Kukai achieved enlightenment by staring relentlessly at a single glowing Sanskrit letter

In Ajikan, practitioners visualize a Sanskrit “A” on a lotus inside a moon disc. They imagine it expanding to encompass the universe, then shrinking into…

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Basel's ferries let the river power the crossing
Transport

Basel's ferries let the river power the crossing

The Rhine ferries are tethered to overhead cables and use the river's current rather than engines to move between banks. Angling a constrained boat against…

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The plague bacteria existed thousands of years before the Black Death
Science

The plague bacteria existed thousands of years before the Black Death

The plague bacterium Yersinia pestis was infecting people thousands of years before the Black Death. Ancient DNA shows that the medieval pandemic was one…

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Why migraines can strike before your period
Health

Why migraines can strike before your period

Just before a period, estrogen levels can drop. That change can switch on the trigeminal pain pathway and release CGRP, which is involved in migraine—helping…

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A common gene variant changes folate processing—not whether you can do it
Health

A common gene variant changes folate processing—not whether you can do it

MTHFR supplies instructions for a protein that helps the body use folate, a vitamin needed to make DNA. Common variants can affect that process, but people…

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Halo 2 made players answer ringing payphones
Culture & entertainment

Halo 2 made players answer ringing payphones

In 2004, the I Love Bees campaign sent fans to real payphones, where calls revealed fragments of an audio drama.

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