Alexis Madrigal
Alexis Madrigal is a senior editor at The Atlantic. He's the author of Powering the Dream: The History and Promise of Green Technology.
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Never Lose Your Dog Again?
A peek at how well pet trackers really work.
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Maps
The Happiest Cities in America, According to 10 Million Tweets
People in Napa, California, sure are satisfied. And the saddest places all swear too much.
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Can an App Get People to Walk More?
Our infrastructure deters walking and encourages driving. But tracking our steps may make plain the importance of staying active.
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Photos
The Best Aerial Panorama of Manhattan We've Ever Seen
A photographer shot New York City from a helicopter, then stitched together this awesome image.
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San Francisco: 'Brooklyn to an As-Yet-Unbuilt Manhattan?'
If Silicon Valley wants to remain the world's high-tech capital, it may need to reform itself into an urban wonderland.
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Google Maps Is Back
The app - complete with voice-guided turn-by-turn directions - is now available for the iPhone.
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Maps
2/3 of Sandy-Damaged Homes in N.Y. Were Outside the 100-Year Flood Zone
One more sign it's time to rethink our planning for natural disasters.
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Instagram and Google Street View, Together At Last
An intriguing juxtaposition of exterior backgrounds and human foregrounds.
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Maps
Google Street View Tackles the Grand Canyon
The mapping service's sherpas are on the trail, backpack topped with the camera orb in tow.
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How Driveless Cars Will Revolutionize the Transit System
Transportation-as-a-service models could really take off in a world of hyper-optimized robo-taxis.
