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A gin pole in use loading logs A gin pole used to install a weather vane atop the 200-foot steeple of a church Roof trusses being assembled with gin poles. A gin pole is a mast supported by one or more guy-wires that uses a pulley or block and tackle mounted on its upper end to lift loads. The lower end is braced or set in a shallow hole and ...
Jennifer Lynn Suhr (née Stuczynski; born February 5, 1982) is an American former pole vaulter. [2] She has been an Olympic and World champion, has been ranked #1 in the World, has been the #1 American pole vaulter since 2006, and has won a total of 17 US National Championships (7 Indoor, 10 Outdoor).
The tip of the vaulting pole is angled higher than eye level until three paces from takeoff, when the pole tip descends efficiently, amplifying run speed as the pole is planted into the vault box. The faster the vaulter can run and the more efficient their take-off is, the greater the kinetic energy that can be achieved and used during the vault.
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower , and a boom hinged at its base to provide articulation, as in a stiffleg derrick.
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The mountains themselves in some places further enhanced the rainfall because they contribute to the lift that produces more rain in thunderstorms, Easterling said. “It was at least 30 hours of ...
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