Machine that tumbled into excavated pit March 3 during demolition of a county government office building complex in Washington, Pa., near Pittsburgh, left the operator apparently unhurt, say published reports.
This 1933 cover photo shows workers maneuvering a bomb into position on a platform in San Francisco Bay, at a very early stage of the Golden Gate Bridge project.
Finding accurate subsurface surveys of bedrock topography is a time consuming process that can be augmented with A.I., say experts sharing recent success stories.