In a race to meet EPA guidelines, U.S. cities have installed dozens of these devices over the past decade.
New research suggests that location plays a smaller role now in who we talk to and what we talk about.
One couple set out to visit the exact spot in each state that's farthest from a city or town.
The people and ideas reshaping urban life
This new robo-bartender that's slinging rounds in San Francisco is just great.
This is sweet.
A new app called Stereopublic is your guide to urban silence.
Miha Tamura captures the extraordinary side of this everyday ride.
The international mobile application contest from the New Cities Foundation.
Clear and distressing pockets of hate speech.
Building wind turbines isn’t cheap. But it will mean about $100,000 in energy savings each year for two small towns.
Just in case you weren't sure.
The map offers a nifty live survey of people's utterly random interests (or perceived areas of expertise).
A new interactive project from Google, NASA and the US Geological Survey.
Mega-collector David Rumsey explains how maps are an "archive of information."
Civil liberties advocates argue that it may be too much.
And they aren't even coming out until next week.
OpenStreetMap debuts a new map editor that will close the gap between grassroots mapping and its giant industry rivals.
At New York Ideas, Ray Kelly says we should be prepared for more cameras — and smarter cameras.