With the Periscope app, owned by Twitter, it's easy for smartphone users to stream their own video live. Chris Jackson/Getty Images hide caption

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An image from a video made by photographer Aaron Mischel which featured the song "Happy" by the band Secrets in Stereo. Aaron Mischel/YouTube hide caption

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The author, modeling her mother's watch. Laura Sydell/NPR hide caption

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Intel Corp. co-founder Gordon Moore holds up a silicon wafer at Intel headquarters in Santa Clara, Calif., in 2005. Moore's prediction 50 years ago, called Moore's Law, has been the basis for the digital revolution. Paul Sakuma/AP hide caption

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Zynga CEO Mark Pincus gives a presentation in 2011. Jeff Chiu/AP hide caption

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Artists in the residency program at Autodesk are given access to production-quality equipment in workshops, allowing them space to create at-will. Blake Marvin/Courtesy of Autodesk hide caption

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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

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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

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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

A staff member from DJI Technology Co. demonstrates a drone in Shenzhen, in southern China's Guangdong province. A new website lets people request that drones stay away from their property. Kin Cheung/AP hide caption

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