technology

Business, Finance & Economics

How a couple's Fitbit told them they were expecting

David Trinidad and his wife Ivonne had just recently started using Fitbits, when Ivonne said that hers was malfunctioning. The device was showing an unusually high resting heart rate and recorded 10 hours in one day in what it called the “fat burning zone,” even though she had not been particularly active. But her Fitbit wasn't broken — she was pregnant.

Science, Tech & Environment

How police license plate readers can invade your privacy

License plate readers scan plate numbers and then cross-reference them with a “hot list” of plates of wanted or stolen vehicles. The problem is that only a small fraction of the plates are on the wanted list; the rest belong to non-criminal, law-abiding people – people whose movements the government could now conceivably track.

Health & Medicine

The fight is on over e-cigarettes

Electronic cigarette ads are on TV. New York City is restricting e-smoking in the same way as it restricts tobacco smoking. And government data indicates that 10 percent of high school students have tried e-cigs. Now, researchers are racing to figure out how they will impact public health.

Conflict & Justice

New York City's hijacked hashtag launches a global conversation on police brutality

Updated

When the New York Police Department encouraged its followers on Twitter to share photos of themselves with NYPD officers, the result was not what they expected. Two days later, the hashtag has been mimicked in a half dozen cities around the world to showcase police brutality. But the social media effort has had another consequence: it has started a global dialogue about the perception of police and policing in different cities.