In metal mines, where, as a rule, mechanical haulage is inapplicable, the cars are moved by men (trammers). metal (n): a chemical element, such as iron or gold, or a mixture of such elements, such as steel, that is generally hard and strong, and through which electricity and heatcan travel. 2. Numerous other salts of zinc, used in medicine, are of value as containing this metal. Future generations might actually find our radioactive wastes valuable, just as old mine tailings are a useful source of precious metals today. Cadmium is a white metal, possessing a bluish tinge, and is capable of taking a high polish; on breaking, it shows a distinct fibrous fracture. Copyright © 2016 sentencedict.com All Rights Reserved Contact. Now the effective change produced by the action of the current is the concentration of the more dilute solution by the dissolution of metal in it, and the dilution of the originally stronger solution by the separation of metal from it. An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted with the nonmetals, or metalloids. the resistance of a metal to abrasion by friction. The keys which hold the rail in the chairs are usually of oak and are placed outside the rails; the inside position has also been employed, but has the disadvantage of detracting from the elasticity of the road since the weight of a passing train presses the rails up against a rigid mass of metal instead of against a slightly yielding block of wood. The cobaltous salts are formed when the metal, cobaltous oxide, hydroxide or carbonate, are dissolved in acids, or, in the case of the insoluble salts, by precipitation. Again, by raising the temperature, a metal in the solid state can be melted and liquefied, and poured into a mould to assume any form desired, which is retained when the metal cools and solidifies again; the gaseous state of a metal is revealed by the spectroscope. Like Fe 2 0 3, the yellow oxide lost 48 parts of oxygen per Ur203 (= 864 parts) as water, while Ur 2 = 816 parts of metal remained. These results were adopted until Peligot in 1840 discovered that Berzelius's (and Klaproth's) metal contains oxygen, and that his (Ur 2) 0 3 really is (U606) 03= 3U 2 0 3, where U= 120 is one equivalent weight of real uranium. The room was vacant except for a metal slab that served as a bed and the six-legged, cat-like creature sitting on the edge of the bed watching its sleeping occupant. Guillaume 6 explains the ferromagnetism of Heusler's alloy by supposing that the naturally low critical temperature of the manganese contained in it is greatly raised by the admixture of another appropriate metal, such as aluminium or tin; thus the alloy as a whole becomes magnetizable at the ordinary temperature. The distinguishing feature of the first is the steepness of its outlines; this indicates that the induction increases rapidly in relation to the magnetic force, and hence the metal is well suited for the construction of dynamo magnets. 25 sentence examples: 1. The mines once produced 3000 tons of metal annually, copper smelting being largely carried on, but have now almost ceased working. The death metal movement in both North America and Europe adopted and emphasized the elements of blasphemy and diabolism employed by such acts. The isolation of the pure metal is of much later date. Uranous Compounds.-Uranium dioxide, UO 2 (Berzelius's metal), is a brown to copper-coloured powder, obtained by heating U308 or uranyl oxalate in hydrogen. The metal itself is not used in medicine. The rail-failures mentioned above also drew renewed attention to the importance of the thermal treatment of the steel from the time of melting to the last passage through the rolling mill and to the necessity of the finishing temperature being sufficiently low if the product is to be fine grained, homogeneous and tough; and to permit of this requirement being met there was a tendency to increase the thickness of the metal in the web and flanges of the rails. a v, portrait, image), generally any image or portrait-figure, but specially the term applied to the representations in the Eastern Church of sacred personages, whether in painting or sculpture, and particularly to the small metal plaques in archaic Byzantine style, venerated by the adherents of the Greek Church. The influence of high temperature on cobalt was very remarkable, completely altering the character of the change of length: the curves for annealed cobalt show that at 45 this metal behaves just like iron at ordinary temperatures, lengthening in fields up to about 300 and contracting in stronger ones. | To make a road using crushed rock, stones etc. metres of the superficial area covering the mine, and a proportional duty varying from I% to 20% of the gross value of metal contained in the ore, according to the kind of metal and the method of extraction of the ore), £T45,141; and tax-papers (Tezkeres), £T58,434. The Eastern railway has works at Romilly, and there are iron works at Clairvaux and wire-drawing works at Plaines; but owing to the absence of coal and iron mines, metal working is of small importance. Her fingertips touched the metal choker he slid around her neck. meshuggah! A car crossed the bridge behind them, leaving a wake of squeaking and groaning metal and wood. The former contains a mixture of semi-solid and molten metal, which is raked out into iron ladles and cast into plates of 66 to 77 lb weight, to be sold as "spelter. Many hockey sticks today are made out of metal, and don't break as easily as the old wooden ones. The front face was of thin metal, and served as a diaphragm. Fusible plugs are little used; they consist of pieces of softer metal inserted on the side of the boiler, which melt should the heat of the water rise above a certain temperature. Cobalt occurs in New South Wales, Victoria and South Australia, and efforts have been made in the former state to treat the ore, the metal having a high commercial value; but the market is small, and no attempt has been made up to 1907 to produce it on any large scale. As if on cue, an old car with more rust than clear metal chugged to a stop at the dollar store. This tendency is resisted by the weight of a mass of metal, which can be caused to slide along a tray attached to the movable coils. From his account it is quite clear that that metal was zinc, but he did not recognize it as the metal of calamine. Examples of how to use the word 'metal' in a sentence. Within the hour, guards returned with a sheet of heavy metal to brace the disabled door. Aluminium is barely affected even at a white heat, if it is pure; the ordinary impure metal is liable to be very readily oxidized. This action completed the furnace-circuit, and current passed freely from the positive carbon through the fragments of metal to the negative carbon, thereby reducing the current through the shunt. Top searched words; Words A-Z; Metal in a sentence The word "metal" in a example sentences. This website focus on english words and example sentences, so everyone can learn how to use them. a cylindrical crystal case mounted in metal frames, elaborately ornamented and jewelled. In the middle part of a rod which has a length of 400 or 500 diameters the effect of the ends is insensible; but for many experiments the condition of endlessness may be best secured by giving the metal the shape of a ring of uniform section, the magnetic field being produced by an electric current through a coil of wire evenly wound round the ring. The extraction of the metal from pure (or nearly pure) galena is the simplest of all metallurgical operations. : Jason Mernick is a California-based artist who works with metals such as copper and stainless steel. Denoting by W the work in ergs done upon a cubic centimetre of the metal (=_fHdB or f HdI), he finds W =nips approximately, where n 47r is a number, called the hysteretic constant, depending upon the metal, and B is the maximum induction. Sentence with the word metal. 20, which shows the number of men killed in the coal and metal mines of Great Britain for a series of years.
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