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Testing chemical risk in MN lakes, scientists shrink to the cell level

Testing chemical risk in MN lakes, scientists shrink to the cell level

Researchers for years have found low levels of antidepressants, insect repellent and other chemicals in Minnesota lakes. But what's the danger? New tools are helping answer that question.
by Dan Gunderson

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Who decides which emojis get the thumbs up?

Who decides which emojis get the thumbs up?

The emoji has put the Unicode Consortium at the center of pop culture.

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Password poems: Safer, easier to remember

Password poems: Safer, easier to remember

Inspired by an XKCD comic, researchers turned random strings of characters into rhymed, metered verse.

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Could depression be caused by an infection?

Could depression be caused by an infection?

Infection and autoimmune activity result in inflammation. And psychiatric researchers now suspect that inflammation may play a role in some cases of depression and other mental illnesses.
by Bret Stetka

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Your daily Earth selfie

Your daily Earth selfie

The NASA and NOAA Deep Space Climate Observatory bring daily selfies of the Earth to a website near you.
by William Lager

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Twitter's ills put spotlight on abuse, Internet style

Twitter's ills put spotlight on abuse, Internet style

A lengthy essay titled "Why Twitter's Dying" landed on Medium.com on Oct. 13. A week later, it's still one of the site's most popular posts.
by Alina Selyukh

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Gyrocopter enthusiasts share their passion in Mankato

Gyrocopter enthusiasts share their passion in Mankato

Supporters of gyros -- called gyroplanes, gyrocopters or rotaplanes -- say they cannot stall or spin out and are thus inherently safer than fixed-wing ultra-lights.
by The Associated Press

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