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Why some extremists see the group as part of themselves
Psychology

Why some extremists see the group as part of themselves

When someone’s identity fuses with a group, “we” starts to feel like part of “me.” The group’s danger can register as a personal threat, so taking risks for…

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In Viking Iceland, killers had to announce their own crime
History

In Viking Iceland, killers had to announce their own crime

The law left little room for a private cover-up: the killer had to leave the weapon, cover the body, and report the crime at the first house on the way home.…

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Researchers brought a forest scent into a hotel laboratory
Health

Researchers brought a forest scent into a hotel laboratory

In a small study, twelve men spent three nights in rooms where hinoki cypress oil was vaporized. Researchers measured changes in natural killer cells, immune…

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Tang-era Chang'an was a global nightlife hub
History

Tang-era Chang'an was a global nightlife hub

Trade brought merchants, performers, and imported goods into the city. At its taverns, poet Li Bai drank Persian grape wine while Sogdian illusionists and…

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Why Riga’s buildings look like they’re screaming
Travel

Why Riga’s buildings look like they’re screaming

Riga’s Art Nouveau façades are packed with faces, dragons, sphinxes, gargoyles, and floral designs. Architect Mikhail Eisenstein designed many of them, giving…

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Robots move containers through Rotterdam's dark terminals
Transport

Robots move containers through Rotterdam's dark terminals

Automated guided vehicles carry containers between the quay and the yard, following routes tracked by sensors and control systems. With no drivers to see the…

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Scientists installed a synthetic genome in a living cell
Science

Scientists installed a synthetic genome in a living cell

In 2010, researchers built a bacterial genome from a designed DNA sequence and transplanted it into a recipient cell. The resulting cells reproduced under the…

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Helplessness research shifted toward how the brain learns control
Psychology

Helplessness research shifted toward how the brain learns control

Early experiments showed animals failing to escape after uncontrollable stress. Later neuroscience led researchers Maier and Seligman to rethink the…

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When America sent jazz musicians as Cold War ambassadors
History

When America sent jazz musicians as Cold War ambassadors

Washington hoped jazz’s improvisational energy would sell American ideals abroad, so it sent Black stars including Dizzy Gillespie and Louis Armstrong on…

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The invisible assistants behind Japan’s dramatic cosplay photos
Culture & entertainment

The invisible assistants behind Japan’s dramatic cosplay photos

In Japan, photographers use black-clad stagehands called kuroko to create practical effects just outside the frame: they throw water or smoke and tug fishing…

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Venetian spymaster Giovanni Soro decrypted Vatican letters for the Council of Ten using frequency analysis
History

Venetian spymaster Giovanni Soro decrypted Vatican letters for the Council of Ten using frequency analysis

Soro cracked rival ciphers with frequency analysis, but Venice’s own codes posed a different problem: an accurate translation could expose them. When the pope…

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The strange frogs that switch trolleybus wires
Transport

The strange frogs that switch trolleybus wires

Overhead wire switches called frogs guide trolleybus poles through junctions, steering them onto the chosen branch. Electrical contacts trigger the route…

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The clock can be part of a chemotherapy experiment
Health

The clock can be part of a chemotherapy experiment

Researchers study whether matching drug delivery to daily biological rhythms changes toxicity and effectiveness. Cells do not process every drug identically…

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Netflix uses a program that deliberately breaks its servers
Technology

Netflix uses a program that deliberately breaks its servers

Chaos Monkey randomly shuts down production systems to test whether Netflix’s infrastructure can withstand failures. Automated systems detect the outages,…

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The tiny cellular motors that walk while carrying cargo
Science

The tiny cellular motors that walk while carrying cargo

Kinesin walks by alternating its two legs along a tiny track inside the cell. ATP gives one leg the energy to let go, swing forward, and grab on again while…

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A cave can preserve DNA without a visible fossil
Science

A cave can preserve DNA without a visible fossil

Traces of biological material can become trapped in sediment long after a body has disappeared. Researchers extract and identify those fragments to…

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The hookworms being tested against Crohn's disease
Health

The hookworms being tested against Crohn's disease

Hookworms release proteins that can quiet parts of the host’s immune response. Researchers are testing whether that effect could reduce the inflammation…

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Can Botox affect how we read other people's emotions
Psychology

Can Botox affect how we read other people's emotions

A faint frown can be easier to recognize when your own face can echo it. Botox limits movement in targeted facial muscles, so the small mimicry that helps…

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