The 67 engineers and scientists called to the White House in December for a prestigious award were not old hands with lots of tenure working in their fields for decades. They were young professionals exploring not only the frontiers of science and engineering research but also real-world applications that break ground and cross traditional barriers. The government is betting at least $400,000 on each of these high-achieving but tenure-lacking GenX-ers over the next five years to transform their technology arenas and the image of engineering and science. Photo: Arizona State University Torrens sees benefits to urban rehabs, land use and
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.