Tech

London Is Turning Old Phone Booths Into Free Cell Phone Charging Stations

The retrofitted payphones give no-strings-attached power through public advertising.

2014 Was the Biggest Year For Solar Power Ever

The overall price of solar—panels, installation, and financing—dropped 10 percent compared to 2013.

The Best Evidence Yet That Real-Time Arrival Info Increases Transit Ridership

New York's Bus Time program led to about a 2 percent rise overall, according to new research.

California Drivers Are About to Give High-Speed Rail a Big Funding Boost

State cap-and-trade revenue, which now includes tailpipe credits, appear set to far outpace expectations.

The Secrets in Sewage

What can a city's waste reveal about the health of its population?

Your Credit Card Is Now Your Fare Card on the Mumbai Metro

Adoption of similar mass transit technology in the U.S. may not be far off.

This Strange Stockholm Wind Farm Generates Power Through Writhing Tentacles

The proposed "Strawscraper" would create energy from the gyration of thousands of follicles.

There's a Simple Solution to the Smithsonian's Ban on Selfie Sticks

Museums have long devised methods of accommodating visitors who annoy others.

How Citymaps Could Make Yelp Obsolete

The newly global mapping app shows destinations in their full urban context.

Here's an App That Explains #TheDress, Once and for All

Has your office lost its collective mind about The Dress? Whip out this app and let color science stop the madness.

Teaching Driverless Cars to Fit Your Human Driving Style

After all, not everyone takes an off-ramp the same way.

How Gary, Indiana, Got Serious About Tackling Blight

The mayor of Gary is determined to stop a tide of vacant, neglected buildings in her post-industrial city. Data-rich parcel mapping is the first step.

The Eiffel Tower Is Now the Loveliest Electrical Generator in the World

It's all about visibility: If one of the most famous monuments in the world can use sustainable energy, why can't everything else?

Maps

Help New York Build a Digital Time Machine

The New York Public Library needs a hand with its ambitious "Google Maps of yesteryears" project.

A Dreamy New Database for L.A. Architecture Nerds

15 years in the making, the most complete resource on L.A.'s historic built environment has just launched.

Why Did a Chinese Rocket Break Up Spectacularly Over America?

It had launched a scientific or military satellite, depending on which side you believe.

Forget FedEx and UPS—Waffle House It

The new epicenter of shipping.

Almost No Cities Own Their Names on Twitter

Cities need to get on-brand with their brands, because the situation is hilariously bad.