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One person’s ashes could make 900 pencils
Science

One person’s ashes could make 900 pencils

A pencil core needs graphite, but cremated remains are mostly mineral bone fragments. Any carbon that can be recovered has to be separated and converted into…

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America's first Greek-letter society met to discuss forbidden topics
History

America's first Greek-letter society met to discuss forbidden topics

Phi Beta Kappa began in 1776 at a Williamsburg tavern. Its members met privately to debate questions beyond a tightly controlled college curriculum, including…

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Virgo individuals notice every single rogue dust speck
Myths & mysteries

Virgo individuals notice every single rogue dust speck

Astrology casts Virgo as so detail-focused that even a freshly cleaned room can reveal another speck—or another reason to clean.

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The $120,000 computer that became a video-game machine
Technology

The $120,000 computer that became a video-game machine

In 1962, MIT students used a PDP-1 that cost over $120,000 to create Spacewar!, a game of two spaceships shooting at each other. Steve Russell spent 200 hours…

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A PlayStation 2 patent points back to Atari
Technology

A PlayStation 2 patent points back to Atari

A Sony design patent's references include Atari's Falcon Microbox, a little-known computer design. Patent citations record earlier designs relevant to an…

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What “natural flavors” can legally mean
Health

What “natural flavors” can legally mean

U.S. labeling rules define natural flavors by permitted sources and their flavoring role. Extracts can come from many plant or animal materials, while…

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Roller skate wheels flex when you lean to make you turn
Transport

Roller skate wheels flex when you lean to make you turn

Leaning shifts your weight onto one side of the skate, compressing its soft bushings and tilting the trucks so the wheels steer into a curve. The wheels…

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Volcanoes can cool the planet by sending millions of tons of sulfur dioxide skyward
Science

Volcanoes can cool the planet by sending millions of tons of sulfur dioxide skyward

A volcano can cool Earth if sulfur dioxide from an eruption reaches high into the atmosphere. It forms tiny particles that reflect some sunlight back to…

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How scientists solve impossible equations with random numbers
Technology

How scientists solve impossible equations with random numbers

Monte Carlo simulations use many random samples to estimate answers when exact calculations are impractical. Scientists track the outcomes of those trials…

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People once used complex charts to predict whether it would rain
Myths & mysteries

People once used complex charts to predict whether it would rain

Practitioners cast elaborate charts to forecast rain, turning a simple question about the weather into a complex calculation.

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Splinter Cell let you hide above guards
Games

Splinter Cell let you hide above guards

Players could brace themselves in a full split between two walls, letting armed guards walk underneath without spotting them.

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Minecraft's first prototype took just six days
Culture & entertainment

Minecraft's first prototype took just six days

Markus Persson made the prototype in 2009, before it grew into the game that became a multi-billion-dollar franchise.

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Standing in queues has absolutely zero true economic value
Economy

Standing in queues has absolutely zero true economic value

A queue makes people pay with hours instead of money. The person who waits longest gets the item, even if someone else wants it more or would gladly pay more…

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Culture & entertainment

How Mirror’s Edge makes you feel faster

As you sprint, the camera shifts focal length and blurs the screen's edges, keeping your attention centered and making the motion feel faster without…

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Hugo Boss’s wartime factory used forced labor
Economy

Hugo Boss’s wartime factory used forced labor

The company produced uniforms during the Nazi era and employed forced laborers and prisoners of war. A historical study commissioned by Hugo Boss documented…

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Anxiety can make negative events feel far more likely than they really are
Psychology

Anxiety can make negative events feel far more likely than they really are

When you’re anxious, your mind keeps asking what could go wrong. That repeated search makes threats feel vivid and close, while the uneventful possibilities…

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Early Tetris built its blocks out of text characters
Culture & entertainment

Early Tetris built its blocks out of text characters

Alexey Pajitnov developed the game on a Soviet Electronika 60, without the colorful graphics later players knew. Versions used paired characters to represent…

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Your gelatin dessert starts with animal collagen
Economy

Your gelatin dessert starts with animal collagen

Gelatin starts with collagen-rich animal hides and connective tissue, often leftovers from slaughterhouses. Boiling extracts the protein that makes the…

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