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Ice auger with offset brace handle. Augers have long been used for drilling through ice for ice fishing. Augers can be rotated by hand, using a mechanism such as a T handle or a brace bit, or by attaching them to powered hand drills. [70] Scientific uses for non-coring augers include sensor installation and determining ice thickness.
Tractor and rig for drilling holes for ice fishing Ice ax for drilling holes. Ice fishing gear is highly specialized. An ice saw, ice auger or chisel is used to cut a circular or rectangular hole in the ice. The size of the hole depends on the type of fish sought, generally suggested is 8 inches (20 cm).
Agassiz's demonstration of the great difficulty of drilling deep holes in glacier ice discouraged other researchers from further efforts in this direction. [12] It was decades before further advances were made in the field, [12] but two patents, the first ice-drilling related ones to be issued, were registered in the United States in the late 19th century: in 1873, W.A. Clark received a patent ...
Drill cuttings [1] are broken bits of solid material removed from a borehole drilled by rotary, percussion, or auger methods and brought to the surface in the drilling mud. Boreholes drilled in this way include oil or gas wells, water wells, and holes drilled for geotechnical investigations or mineral exploration. [2]
Ice auger patented in 1932; the design is very similar to modern augers used for shallow drilling. [11] Ice cores are collected by cutting around a cylinder of ice in a way that enables it to be brought to the surface. Early cores were often collected with hand augers and they are still used for short holes. A design for ice core augers was ...
Hence, blueline drawings that are used as engineering working copy prints have to be protected when not in use by storing them in flat files in the dark. Incandescent lighting was often used in areas where blueline engineering prints needed to be posted on a wall for long periods to hinder rapid fading.
He is standing at the center of the canvas proudly displays his catch, a large fish hanging at the end of a fishing rod. His black body reveals a white skeletal figure. The painting had previously been auctioned in 1988, a few months after Basquiat's death, and sold for $110,000. [ 2 ]
The picture juxtaposes the similarities between the soft oval white face of the model, as if she were a living mask, with the shiny black mask, also with eyes closed and a serene expression. [4] It also expresses the artist's interest in African art, which had a huge influence in the artistic movements of the first decades of the 20th century.