Because of the First World War, Wegener's book went unnoticed outside Germany. In 1922, however, a third (revised) edition was translated into English, French, Russian, Spanish, and Swedish, pushing Wegener's theory of continental drift to the forefront of debate in the Earth sciences.
How to Use a Drill Press Machine: A drilling machine comes in many shapes and sizes, from small hand-held power drills to bench mounted and finally floor-mounted models. They can perform operations other than drilling, such as countersinking, counterboring, reaming, and tapping large or small holes.
Most dewatering filter presses are sometimes called plate-and-frame filters, but this term accurately describes only a certain style of filter plates in wide use during the mid-to late-1800s.he filter press can also be employed as a polishing filter intended to remove very small concentrations of solids from an influent stream. When used for polishing, the press size is chosen to provide optimal filtration area and hydraulic throughput.