insulating compound
81Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …
82Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… …
83Overhead lines — This article is about the transmission of electrical power to road and rail vehicles. For transmission of bulk electrical power to general consumers, see Electric power transmission. For powerlines mounted on pylons, see overhead power line.… …
84Period 2 element — A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the chemical elements. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the… …
85Fractional distillation — is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them to a temperature at which several fractions of the compound will evaporate. It is a special… …
86Silicon carbide — Chembox new Name = Silicon carbide ImageFile = Silicon carbide 3D balls.png ImageSize = 140px ImageName = Ball and stick model of part of a crystal of SiC ImageFile1 = silicon carbide detail.jpg ImageSize1 = 140px OtherNames = Section1 = Chembox… …
87Lead poisoning — Classification and external resources An X ray demonstrating the characteristic finding of lead poisoning, dense metaphyseal lines. ICD 10 T …
88Monolithic Microwave Integrated Circuit — MMICs, or Monolithic Microwave Integrated Circuits, are a type of integrated circuit (IC) devices that operate at microwave frequencies (300 MHz to 300 GHz). . Additionally most microwave test equipment is designed to operate in a 50 ohm… …
89Optical coherence tomography — Intervention Optical Coherence Tomography (OCT) image of a sarcoma MeSH …
90Computer cooling — An OEM AMD heatsink mounted onto a motherboard. Computer cooling is required to remove the waste heat produced by computer components, to keep components within their safe operating temperature limits. Various cooling methods help to improve… …
