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Tech Tuesday: Preserving Family History

Our most precious family history --old letters, home movies, photo albums--often end up in basements or attics--the worst possible place to preserve these materials. We explore high and low tech ways to protect and store family memorabilia, and the smartest way to migrate different materials to digital formats.


Thirsty? 'Sweat Machine' Turns Perspiration Into Drinking Water

The new device, being used by UNICEF to promote safe drinking water, extracts moisture from worn clothes using a technique known as membrane distillation.

Tech Companies Issue Loud Call For Surveillance Transparency

Facebook and Twitter are among the 63 companies and groups behind a pointed letter calling for specific disclosures of government surveillance requests.

China's Internet Growth In Two Charts

China has by far the most Internet users in the world, but the Internet doesn't have that kind of reach — at least not yet.

Clever Hacks Give Google Glass Many Unintended Powers

Whether it's facial recognition or snapping photos with a wink of an eye, hackers are proving it's possible to re-engineer Google Glass in a number of creative ways.

How Did Zimmerman Trial Interviewees Come Across On TV?

After television appearances from Rachel Jeantel and Juror B37, the Zimmerman verdict is leading the conversation in this week's Beauty Shop. Host Michel Martin is joined by Clutch Magazine's Danielle Belton, PJ Media's Bridget Johnson, and The's Keli Goff.

Police May Know Exactly Where You Were Last Tuesday

Police have scanned millions of license plates around the country and can save the data on vehicle locations for later use. It's a helpful tool for policing, but critics say it's a threat to privacy.

Yahoo's Stock Soars, Sales Remain Flat

There's been excitement on Wall Street about a turnaround at Yahoo since Marissa Mayer became head of the company last year. Mayer has completed high profile acquisitions and sought to improve worker morale. Second quarter revenues missed expectations as Yahoo struggled to corral advertising dollars.

In Kenya, Using Tech To Put An 'Invisible' Slum On The Map

A billion people worldwide live in slums, largely invisible to city services and governments — but not to satellites. A global movement is putting mapping technology in the hands of slum dwellers to persuade governments and the residents themselves to see these shadow cities in a whole new light. NPR's Gregory Warner visits one slum in the Kenyan capital, Nairobi.

VIDEOS: Robot Sticks Backflip; Don't Miss The Bloopers Too

Little Hinamitetu and its cousins star in a series of videos. Watch them flip, and sometimes fail, as they try some Olympian moves.