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DAR-1 is one of the many social robots with facial recognition abilities on display for the robot petting zoo at the South by Southwest interactive festival. Jack Plunkett/AP hide caption

itoggle caption Jack Plunkett/AP

An attempt to build the perfect cockroach cyborg. Carlos Sanchez, Ph.D. student of Mechanical Engineering, Texas A&M University hide caption

itoggle caption Carlos Sanchez, Ph.D. student of Mechanical Engineering, Texas A&M University

Lincoln, Neb., is home to several startups, which use the city's low cost of living and high quality of life to attract workers. Nicolas Henderson/Flickr hide caption

itoggle caption Nicolas Henderson/Flickr

The new doughnut-shaped building will be a mile in circumference. "The office areas are laid out in little wedges all around the building," says Dan Whisenhunt, Apple's vice president of real estate and development. Anya Schultz/KQED hide caption

itoggle caption Anya Schultz/KQED

Apple CEO Tim Cook speaks Sept. 9 during an event at the Flint Center for the Performing Arts in Cupertino, Calif., where he unveiled the Apple Watch. The device officially goes on sale Monday. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Since Google Fiber rolled out gigabit broadband in Kansas City four years ago, residents have enjoyed fast Internet connections, including what locals call "the world's fastest Starbucks." Frank Morris/KCUR hide caption

itoggle caption Frank Morris/KCUR

MindMaze Software Engineer Nicolas Bourdaud demonstrates a virtual reality system at the Game Developers Conference in San Francisco on Tuesday. Josh Edelson/AFP/Getty Images hide caption

itoggle caption Josh Edelson/AFP/Getty Images

Front Porch Forum co-founders Michael and Valerie Wood-Lewis run the company from their home office in Burlington, Vt. Angela Evancie/Vermont Public Radio hide caption

itoggle caption Angela Evancie/Vermont Public Radio

A sign at Etsy's Brooklyn office in 2007 encapsulated the company's ambitious goal: Take down big-box retailers by selling handmade goods. Now Etsy, which in 2012 began allowing some mass-produced goods on its e-commerce site, is filing for an IPO, and trying to maintain its values as it expands. Amit Gupta/Flickr hide caption

itoggle caption Amit Gupta/Flickr

More than 600 Porto city buses and taxis have been fitted with routers to provide free Wi-Fi service. It's being touted as the biggest Wi-Fi-in-motion network in the world. Sérgio Rodrigues/Veniam hide caption

itoggle caption Sérgio Rodrigues/Veniam

The sun sets as a visitor uses his mobile phone Monday during the opening day of the 2015 Mobile World Congress in Barcelona. Wall Street Journal reporter Ryan Knutson — interviewed from the conference Monday via Skype by NPR's Robert Siegel — says that for some smartphone users, Wi-Fi may be able to replace most of the functionality of a cellphone carrier. Josep Lago/AFP/Getty Images hide caption

itoggle caption Josep Lago/AFP/Getty Images

Tinder is launching Tinder Plus, a new version of its app with added features including the ability to have another look at a potential match you swiped away. Tinder hide caption

itoggle caption Tinder

A man takes a "selfie" while waiting in line to cast his vote in the Wisconsin gubernatorial race in November. Darren Hauck/Getty Images hide caption

itoggle caption Darren Hauck/Getty Images

Operators at a Bell System telephone switchboard, as photographed by the Department of Labor Women's Bureau. U.S. National Archives hide caption

itoggle caption U.S. National Archives