Infrastructure
Science
The US Grid Is Adding Batteries at a Much Faster Rate Than Natural Gas
By John Timmer, Ars Technica
Gear
As Questions Swirl Around Tesla’s Superchargers, the Race Is On to Fill the Power Gap
By Aarian Marshall
Gear
San Francisco’s Train System Still Uses Floppy Disks—and Will for Years
By Scharon Harding, Ars Technica