Devin Greene sits in the front seat of an Uber driverless car during a test drive in San Francisco on Dec. 13. Eric Risberg/AP hide caption

The Wikipedia entry for the TV show RuPaul's Drag Race is among the site's most edited this year. Katja Ogrin/Redferns/Getty Images hide caption

Uber says Snapchat will get information about the ETA, vehicle type and destination, but no private data, to create special filters for riders. Uber hide caption

In the Old City of New Delhi, Asim Husain stands in his shop, where he sells hand-stitched purses. He says sales normally conducted in cash are down nearly 90 percent and his attempts to go "cashless" with credit cards or other e-wallet schemes have not met with great success. "The connectivity is very poor," Husain says, referring to the internet. Julie McCarthy/NPR hide caption

Privacy groups have filed a complaint about My Friend Cayla dolls to the Federal Trade Commission, arguing that they spy on children. Brian Naylor/NPR hide caption

A team at the University of Toronto Computer Science Department, has been teaching a computer to write sing-along music. They're calling it "neural karaoke." Atomic Imagery/Getty Images hide caption

A tiny radio receiver built from components the size of two atoms. It emits a signal as red light, which is then converted into an electrical current and can be broadcast as sound by a speaker or headphone. Eliza Grinnell/Harvard School of Engineering and Applied Sciences hide caption

An Intel advertisement on a Hewlett-Packard desktop computer in 2012. Paul Sakuma/AP hide caption

Eli Pariser speaking at TED in 2011. James Duncan Davidson/TED hide caption