Science & Technology

Science and technology news

Where Did Agriculture Begin? Oh Boy, It's Complicated

Jul 15, 2016

Sometime around 12,000 years ago, our hunter-gatherer ancestors began trying their hand at farming.

First, they grew wild varieties of crops like pea, lentil and barley, and herded wild animals like goat and wild ox. Centuries later, they switched to farming full-time, breeding both animals and plants, creating new varieties and breeds. Eventually, they migrated outward, spreading farming to parts of Europe and Asia.

One day in 2012, a group of policemen in a Danish town were sitting around in the office when an unusual call came in. This town, called Aarhus, is a clean, orderly place with very little crime. So what the callers were saying really held the cops' attention. They were parents, and they were "just hysterical," recalled Thorleif Link, one of the officers. Their son was missing. They woke up one day and he was gone.

A sitting duck. That's what South America was a few years ago when Zika first struck. The continent had never recorded a case of the mosquito-borne virus. And everyone was susceptible.

"So you get this huge raging epidemic that blows through the population, usually very fast and infects a pretty high percentage of the population," says Justin Lessler, an epidemiologist at the Johns Hopkins Bloomberg School of Public Health.

NSA Boss Says U.S. Cyber Troops Are Nearly Ready

Jul 14, 2016

The director of the National Security Agency says his first few dedicated cyber troops will be operational by early fall but the nation can't wait for the full unit to be ready.

The military's Cyber Mission Force, which will eventually contain 6,200 people split into 133 teams, is the largest single unit dedicated to operating in computer networks. It's intended to both attack and defend computer systems around the world.

In the wake of last week's shootings, Facebook has seen a significant spike in flagged content, with users calling out each other's posts as racist, violent and offensive, according to Facebook employees, who say the company is having a very hard time deciding who is right or how to define hate speech.

Unpublished, and re-published

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