Several U.S. cities have used isochrones—lines that connect geographic points on a map to compare transit travel times—to redesign their transit systems.

John Fish steered his company, Suffolk Construction Co., through the Great Recession of 2009 with a cheerful optimism and plenty of ambition.

Teams of international researchers are converging on a valley in eastern Portugal this spring to capture granular data on wind moving over rough terrain.

In a recent presentation at a San Francisco conference on optics and photonics, researchers presented papers describing their successful tests of optical data transmission tools, which soon may replace current data centers’ thousands of miles of fiber-optic cables with overhead layer of infrared laser beams, lenses and mirrors.

It started simple enough: a wireless camera mounted on the hook block of a tower crane, allowing the operator in the cab to see the rigger on the ground and the area around the hook.