Startup Density says its Internet-connected sensors can make it simple to count people all over your city.
Technology and geopolitics are driving ambitious deep-sea projects to provide clean energy to parts of the world that desperately need it.
Researchers have created self-contained cellular biolasers.
China generates only about 2 percent of its total electricity using nuclear power, but it is adding new reactors much faster than any other country.
The University of Michigan opens its mock city for testing driverless vehicles.
The first iPhone apps that block online ads could speed up your Web browsing, cut your data bills, and extend your battery life.
The head of Google’s project to develop a self-driving vehicle, Chris Urmson, says his cars are considerably safer than those driven by humans.
Google Glass, no longer available to consumers, is gaining fans in the workplace.
The successful launch of a 3-D-printed drone from a ship shows a possible route to cheaper autonomous aircraft.
Online learning comes into the classroom.