electric welding generator
51Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
52High voltage — The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X… …
53Water turbine — A water turbine is a rotary engine that takes energy from moving water.Water turbines were developed in the nineteenth century and were widely used for industrial power prior to electrical grids. Now they are mostly used for electric power… …
54Laser cutting — process on a sheet of steel. CAD (top) and stainless steel laser cut part (bottom) Laser cutting is a technology that uses a laser to cut materials, an …
55List of problems solved by MacGyver — This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. (This list is not yet comprehensive.) MacGyver employs his resourcefulness and his knowledge of chemistry,… …
56Duty cycle — In engineering, the duty cycle of a machine or system is the time that it spends in an active state as a fraction of the total time under consideration.[1] The term is often used pertaining to electrical devices, e.g., switching power supplies. A …
57Copper — For other uses, see Copper (disambiguation) …
58Dust collector — Two rooftop dust collectors in Pristina, Kosovo A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. Designed to handle heavy… …
59Transformer types — Circuit symbols Transformer with two windings and iron core. Step down or step up transformer. The symbol shows which winding has more turns, but not usually the …
60List of Di-Gata Defenders Spells — This is a list of known stone casts used throughout the television series, Di Gata Defenders. Sorcery in RaDos mostly uses special dice like stones called Di Gata Stones as a casting medium, and draw upon the land (or water if the caster uses… …
