they needed a structure strong enough to support all that water, as well as itself. The best way to do this is to distribute the weight evenly, and directly to the ground. The trough of the aquaduct ...

The arches’ structure, the authors say, also resembles the modern vertebrates’ pharyngeal skeletons—which develops from three embryonic germ layers and neural crest cells—and provide important details ...

Arch bridges are one of the oldest types of ... the stones in the rest of the structure stay together by the sheer force of their own weight. The New River bridge Today materials like steel ...

Discover what your foot arch reveals about your personality! Do you have a flat arch foot or a high arch foot? Are you ...

News reader Lisa Stevens, a volunteer with the Excelsior-Lake Minnetonka Historical Society, differed with an account another reader provided last week in “Where the Heck Is It?” ...