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September 2, 2018

Facebook Admits Sharing Users’ Data With 61 Tech Companies

Facebook has admitted that the company gave dozens of tech companies and app developers special access to its users’ data after publicly saying it had restricted outside companies to access such data back in 2015.

It’s an unusual clear view of how the largest social networking site manages your personal information.

During the Cambridge Analytica scandal revealed March this year, Facebook stated that it already cut off third-party access to its users’ data and their friends in May 2015 only.

However, in a 747-page long document [PDF] delivered to Congress late Friday, the social networking giant admitted that it continued sharing data with [...]

 
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August 22, 2018

Explainer: Locating a gun with sound waves

Founded in 2003, Science News for Students is an award-winning online publication dedicated to providing age-appropriate, topical science news to learners, parents and educators. It’s part of the Science News Media Group, which has published its flagship magazine since 1922. SNS is a program of the Society for Science & the Public , a nonprofit 501(c)(3) membership organization dedicated to public engagement in scientific research and education. SNS — which is free to use — helps to fulfill the Society’s enduring mission to inform, educate and inspire.

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August 22, 2018

Some 3-D printing can leave toxic taint

Today, it seems that three-dimensional, or 3-D, printers are everywhere. People use them in labs, schools —even at home. Anyone can draw an object using a computer program and then print it out of plastic. But some newly printed plastics may emerge with traces of dangerous chemicals, a new study finds. The good news: There also appears to be a cure for the problem.

Shirin Oskui is a bioengineer at the University of California, Riverside. The lab where she works develops tools to measure very small things. She needed a way to measure tiny zebrafish eggs and newly hatched baby fish. So Oskui designed and made a tool using a 3-D printer.

She immersed her tool in a dish [...]

 
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August 22, 2018

Engineers consider liquid salt to generate power

CAMBRIDGE, Mass. — Radioactive materials make nuclear power possible. These elements, such as uranium, shed energy that can be harvested. But they also are dangerous. They emit radiation. This can harm people and the environment. Leslie Dewan believes, however, that she can reduce risks associated with nuclear power and its radioactive wastes.  

She described how at EmTech 2015, a meeting convened here by Technology Review, a magazine of the Massachusetts Institute of Technology.

Dewan is a nuclear engineer and co-founder of Transatomic Power, a local Cambridge-based company. “I became a nuclear engineer because I’m an environmentalist,” she says. Right now, fossil [...]

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