Using a homegrown app on a Samsung Gear Live smart watch, researchers were able to guess what a user was typing through data 'leaks' produced by the motion sensors on smart watches. The project, called Motion Leaks through Smartwatch Sensors, or MoLe, has privacy implications, as an app that is camouflaged as a pedometer, for example, could gather data from emails, search queries and other confidential documents.

The drone, called Aquila, is the baby of Facebook's year-old Connectivity Lab. The lab has been developing new technology as part of the social network's mission to "connect everybody in the world." Four billion people don't have access to the Internet, and 10% of the world's population lacks the necessary infrastructure to get online.