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Wikipedia's open door does not mean everyone contributes equally
Technology

Wikipedia's open door does not mean everyone contributes equally

Research tracking which added words readers actually encountered found that frequent editors dominated much of the visible contribution. Counting accounts…

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National Lampoon printed a spoiler warning in 1971
Culture & entertainment

National Lampoon printed a spoiler warning in 1971

A 1971 article titled “Spoilers” deliberately revealed famous plot twists and endings. The joke depended on doing exactly what readers now try to avoid…

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First reality shows were heavily manipulated
Culture & entertainment

First reality shows were heavily manipulated

Producers shaped the story of An American Family with leading questions and deceptive editing, setting an early template for unscripted TV drama.

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A space-camera project helped put cameras in everyone's pocket
Technology

A space-camera project helped put cameras in everyone's pocket

JPL developed a CMOS active-pixel sensor approach that combined image sensing with electronics on a chip while using little power. Those qualities were useful…

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The cloud began as a shape on network diagrams
Technology

The cloud began as a shape on network diagrams

Telecom engineers drew a cloud on network diagrams to represent external networks whose inner workings weren't shown—the data simply went somewhere beyond the…

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Why looking at texture can feel like touching it
Psychology

Why looking at texture can feel like touching it

Look at ridges, fuzz, or a rough surface and your mind can begin simulating what your fingertips would feel. Vision and touch work together to build a sense…

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Highest bowling score requires mathematical precision
Games

Highest bowling score requires mathematical precision

A perfect game takes 12 strikes: one in each of the first nine frames and three in the 10th.

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The original Dow average followed a railroad-heavy economy
Economy

The original Dow average followed a railroad-heavy economy

Charles Dow's 1884 average contained eleven stocks, mostly railroad companies. The Industrial Average followed in 1896 with a different lineup. An index is a…

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China's 1931 floods killed long after the water rose
History

China's 1931 floods killed long after the water rose

The Yangtze-Huai disaster inundated vast areas and displaced millions. Drowning was only part of the toll: hunger and disease followed the destruction of…

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Chess clocks made thinking time a resource
Games

Chess clocks made thinking time a resource

A linked pair of clocks lets one player's time run while the other player's is stopped. Each move passes the running clock to the opponent along with the…

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An infamous occultist invented his own religion
Myths & mysteries

An infamous occultist invented his own religion

Crowley founded Thelema, a spiritual philosophy whose best-known rule is “Do what thou wilt.”

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The equation that changed how Wall Street prices risk
Economy

The equation that changed how Wall Street prices risk

An option gives its holder the right to buy or sell an asset at an agreed price. The 1973 Black–Scholes model connected its theoretical value to quantities…

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Stare at stripes now, see phantom colors later
Psychology

Stare at stripes now, see phantom colors later

Stare at a stripe pattern long enough and the visual system adapts to the repeated contrast. When you look away, the balance between the systems responding to…

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Slanted home windows were built to keep flying witches out
Myths & mysteries

Slanted home windows were built to keep flying witches out

Some rural American builders tilted high attic windows because they believed flying witches couldn’t navigate the crooked angles.

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One route to the mouse wheel began with a spreadsheet zoom lever
Technology

One route to the mouse wheel began with a spreadsheet zoom lever

Microsoft's Eric Michelman recalled experimenting with a joystick to help Excel users move through large sheets. Zooming out made a distant section easier to…

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Apollo mirrors still bounce lasers back to Earth
Technology

Apollo mirrors still bounce lasers back to Earth

The Apollo astronauts left retroreflector panels on the Moon that bounce laser light back toward its source. Scientists still fire lasers at them from Earth…

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Two sugars with equal calories can send different signals to the brain
Psychology

Two sugars with equal calories can send different signals to the brain

In mouse research reported by NIH, glucose and fructose affected hunger-related neurons and food preferences differently. Equal energy content did not mean…

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Color film was capturing moving images in 1901
Culture & entertainment

Color film was capturing moving images in 1901

Test footage from 1901, discovered in a museum vault, shows a pet bird shifting its colored feathers.

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