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.
A bench model drill press is used on a work bench. These metal drill presses are often used for miscellaneous tasks and drilling holes. Some of these tasks includes sanding, honing, and polishing. These industrial drill presses are ideal for any machine shop or maintenance department. Dake TB-16 Bench Drill Press.