MAINTENANCE and inspection of the sloping, 600-foot face of Hoover Dam is not a task that can be accomplished in a great many ways. In fact, engineers from the Bureau of Reclamation perform this task ...
The sixteenth through twenty-first floors of your high-end commercial office building are leaking water into conference rooms, offices, and workstations, and your tenants are not pleased. You need to ...
With new awareness and research in rope rescue safety, experts are now questioning the effectiveness of the non-tensioned belay. This article will examine pros and cons of this system, as well as ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results