As an alternative to the intrusiveness of some wearable computers, researchers present a small tube you hold up to your eye.
If you believe Tesla, affordable, long-range electric cars could be here sooner than many think.
Japanese physicists show how to extract more energy from entangled particles than is possible with classical thermodynamics
Startup DynaOptics uses lenses that move from side to side, rather than forward and backward, for a high-quality optical zoom in smartphones.
A simple, cheap device turns sunlight into hydrogen fuel.
Apple’s SIM card that lets you switch wireless carriers on the fly could lead to cheaper communications.
Sony and Microsoft release their first video-game consoles in seven years, but they’re battling for a world of play that is rapidly changing.
The smaller tracking devices become, the more applications they find.
The blue LED might save more energy than just about any other technology.
An app called Yovo uses a clever trick to make it hard to preserve its ephemeral messages.