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.
A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials (Figure 4-1). Drilling machines use a drilling tool that has cutting edges at its point.
Equipment that is used for Drilling is also known as oilfield parts that can perform seismic surveys as well as shock waves that are created with the help of the following gears: 1  Compressed air guns that shoot pulses or columns of air into the water for explorations over the water.