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Why Twitter Ties Resemble Airline Hub Maps

Twitter is supposed to have turned the world into a global village. But new research shows that our Twitter ties are considerably more parochial than most of us imagine. People no longer define their communities by where they live but by common interests.
NPR

Tech Pioneer Channels Hard Lessons Into Silicon Valley Success

Jen-Hsun Huang's education in the rough environment of eastern Kentucky helped make him a tough player in the tech industry. Now Nvidia, the company he co-founded, makes powerful graphics chips that bring realistic games and movie effects to screens small and large.
NPR

Our Media, Ourselves: Are We Headed For A Matrix?

We're streaming our video, downloading our books and doing away with the hard copies that used to help communicate our personalities to one another. Bob Mondello points to a surprisingly early vision of that kind of digital future — and asks what's behind the worry it expresses.
NPR

The New Running Game Where 'Zombies' Chase You

There are many running apps out there but none are quite like the new iPhone app "Zombies, RUN!" In addition to escaping hungry zombies, the app challenges the runner to collect supplies and accomplish objectives, all in a post-apocalyptic world.
NPR

Building A Village Starts With Building The Tractor

Do-it-yourselfers have made everything from bamboo bicycles to 3-D printers, but nothing as ambitious as the Open Source Ecology project. On a farm in northwest Missouri, tractors and other industrial machines are made from scratch, with detailed plans on how to do it yourself shared online.
NPR

At Last, They See: E-Books 'Democratize' Publishing

Not known as a hotbed of experimentation, the world of publishing has been slow to embrace the transition from print to digital. But in New York this past week, the publishers who gathered were more interested in exploring new ideas than arguing about the death of books.

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