The city also became a lab experiment in planning as the central government sought to speed urbanization.

FORBES: Chongqing: China's Lab Experiment In Urbanization

The materials Dr Brooks and his colleagues are planning to use in their experiment have more complex molecular structures than graphite, but they work in essentially the same way to create restrictions on where electrons can go.

ECONOMIST: Magnetism

If the experiment takes off, says town planning director Tan Thean Siew, residents can expect more pedestrian-friendly town squares.

CNN: Georgetown

An experiment in industrial order and community planning, the neighborhood features a design that was intelligent in 1880 and "smart" today.

FORBES: The Pullman Neighborhood, Chicago, Illinois