Electronics

Researchers are developing wristbands and apps to predict moods—but the technology has pitfalls as well as promise

When Americans go to the polls, will hackers unleash chaos?

Companies claim e-cigarettes can deliver nutrients, but experts say the science looks shaky

Physicists say this futuristic, super-secure network could be useful long before it reaches technological maturity

More than two million internet respondents pondered dilemmas to consider in letting vehicles make moral choices

Evidence behind a digital tech intervention remains scant 

Arthur Ashkin, Gérard Mourou and Donna Strickland shared the Nobel Prize for finding ways to control and enhance laser light, leading to numerous common applications. 

Artificial intelligence is making it possible for anyone to manipulate audio and video. The biggest threat is that we stop trusting anything at all

It will make 4G phones seem positively quaint

Terahertz millimeter-wave technology will screen passengers for bombs and suicide vests from 10 meters distance as they rush to make the next train

The president plans to send a test message in a system that would notify Americans of an imminent attack or other catastrophe

Some say our gadgets and computers can help improve intelligence. Others say they make us stupid and violent. Which is it?