Innovation

A new report on Chicago by the city's non-profit economic development agency found that focusing on transportation is an important element of keeping the city competitive. Photo by Colin Harris.

Zipcar’s Future Metropolis Index

In his annual State of the Union address, President Obama declared: “I will not walk away from clean energy.”

His words were a sharp rebuttal to critics harping on the Solyndra bankruptcy and others making dire predictions about the…

Isn’t it just the worst riding up a hill on your bike? If Maxwell von Stein’s invention catches on, riding up a hill or gaining speed after stopping at a red light will never exert much energy again.

Carnegie Mellon University industrial design students Jonathan Ota and Ethan Frier developed the Aura system that brings attention to bicyclists by lighting up their bike. The students incorporated six groups of three tri-colored LEDs attached to the rims of a bike. The lights are powered by a generator built into the front hub.

Written with analysis from Athena Ballesteros, Louise Brown, Florence Daviet, Crystal Davis, Aarjan Dixit, Kelly Levin, Heather McGray, Remi Moncel, Clifford Polycarp, Kirsten Stasio, Fred Stolle, and Lutz Weischer