Tech

The 8 Most Intriguing Finalists From the Bloomberg Philanthropies' Mayors Challenge

Five winners will be announced this spring, but these ideas stand out above the rest.

Maps

Twitter Data Use of the Day: Mapping the Languages of New York City

5 percent of Tweets out of the city are in a language other than English.

Introducing 'Riot,' the Video Game Based on Actual Violent Uprisings Around the World

Take on the role of violent agitators or the police in this atmospheric smartphone simulator.

An App That Tells You How Walkable a Street Really Is

Walkonomics looks at small things -- sidewalk quality, hilliness -- that make a real difference to walkers.

Lovelorn Map of the Day: Top Missed Connections Locations by State

You may be more likely to spot a potential mate at a Walmart in a whopping 15 states.

Videos
CIA.gov

The 'Insectothopter,' a Teensy-Weensy CIA Drone From the 1970s

The 1-gram listening device that flew like a dragonfly never really got off the ground.

Shutterstock

What Food Desert Maps Get Wrong About How People Eat

Our understanding of food access seldom takes into account a key factor: mobility.

Group Antro

Introducing an Electric Scooter That Folds Up Into Luggage

Hungary's MOVEO scooter looks like something baggage handlers might lose at the airport.

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.

The Worst Cities for College-Educated Women Trying to Find a Decent Date

Stay away from Sarasota, Florida.

Maps

Here's What Would Happen if a Huge Asteroid Hit Your City

Would you dissolve in fire or would your clothes simply ignite?

Click that 'hood

This Name That Neighborhood Game Will Distract You All Afternoon

So you think you know your city?

How This Year's Flu Managed to Outsmart Google

Scientific hindsight shows that Google Flu Trends far overstated this year's flu season, raising questions about accuracy.

Reuters

What Mosh Pits Can Teach Us About Crowd Control in Public Spaces

Though they look like a mess of humanity, the pits actually follow a set of rules.

Chicago's Secrets, Revealed Through User-Friendly Apps

The Open City group turns government data into apps on crime, snow plows, even lobbying efforts.

Shutterstock

Can You Build a Tech Ecosystem in a City with a Huge Digital Divide?

Access for all was one of the hot topics at The Atlantic's Start-Up City: Miami conference.

Joan Campderros-i-Canas/Flickr

10 Ways to Improve High-Density Cities

Ideas for enhancing safety, affordability, and quality of life.

Maps

Watch a Map of Lost Productivity (Otherwise Known as Tweeting)

All the tweets in the world glimmer in this entrancing visualization of real-time tweets.

Kasia Cieplak-von Baldegg

How Does a City Known for Art and Design Turn Itself Into a Tech Hub?

Miami tries to figure that out.