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Magnesium   /mægnˈiziəm/   Listen
Magnesium

noun
1.
A light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine).  Synonyms: atomic number 12, Mg.



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"Magnesium" Quotes from Famous Books



... is not easy to believe that it is a fluid, yet its sharply defined upper surface leads us to suppose that it can not well be a mere mass of vapour. The spectroscope shows us that this chromosphere contains in the state of vapour a number of metallic substances, such as iron and magnesium. To an observer who could behold this envelope of the sun from the distance at which we see the moon, the spectacle would be more magnificent than the imagination, guided by the sight of all the relatively trifling fractures of our ...
— Outlines of the Earth's History - A Popular Study in Physiography • Nathaniel Southgate Shaler

... hydrogen and helium, the lightest Of elements, can be traced; and the hydrogen is in an unfamiliar form, implying terrific temperature. In the next stage we find the lines of oxygen, nitrogen, magnesium, and silicon. Metals such as iron and copper come later, at first in a primitive and unusual form. Lastly we get the compounds of titanium and carbon, and the densely shaded spectra which tell of the thickly gathering vapours. The intense cold of ...
— The Story of Evolution • Joseph McCabe

... Growth, Flowering, and Magnesium Deficiency of Reed and Potomac Filbert Varieties—H. L. Crane ...
— Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting • Northern Nut Growers Association

... father ignited the end of a piece of magnesium wire, which burst out into a brilliant white light, showing them the roof and sides of the narrow cave, flashing off the water, and, what was of greater interest still, displaying the heads of a couple of seals raised ...
— Menhardoc • George Manville Fenn

... bags, at about fourteen cents a pound, or in carload lots under the chemical name of acetylsalicylic acid, for eleven cents a pound. And any big chemical corporation will sell you U.S.P. grade Milk of Magnesia at about six dollars a ton. Its chemical name, of course, is magnesium hydroxide, or Mg(OH){2}, and you'd have one thousand quarts in that ton. Buying it beautifully packaged and fully advertised, you'd pay up to a dollar twenty-five a pint in the druggist ...
— Subversive • Dallas McCord Reynolds

... case, large frame conservatories are built which are lighted, not from the roof, but by wide double windows reaching from the eaves to the ground, and heated by numerous stoves into which the coal just taken from the ground is thrown. Electric lights, magnesium lights and lime lights help to make the long nights of winter as cheerful ...
— The Dominion in 1983 • Ralph Centennius

... with stops in them," but it is, at any rate, sufficiently formidable and uproarious, sometimes exciting, indeed, the anxiety of the audience, lest it should crash through the roof of the theatre, and visit them bodily in the pit; while for our magnesium or lime-light flashes of lightning, they are beyond anything that "spirit of right Nantz brandy" could effect in the way of lambent flames, have a vividness that equals reality, and, moreover, leave behind them a pungent and sulphurous ...
— A Book of the Play - Studies and Illustrations of Histrionic Story, Life, and Character • Dutton Cook

... equal to about 2 atmospheres, only about 40 grains per gallon are held in solution. At a pressure of 3 atmospheres, and temperature of 302 Fahr., it is practically insoluble. The point of maximum solubility is about 95 Fahr. The presence of magnesium chloride, or of calcium chloride, in water, diminishes its power of dissolving sulphate of lime, while the presence of sodium chloride increases that power. As an instance of the latter fact, we find a boiler works much cleaner which is fed alternately with fresh water and with brackish water pumped ...
— Scientific American Supplement, No. 363, December 16, 1882 • Various

... was Paul a whit behind when he succeeded in producing laboratory colloids exhibiting amoeba-like activities, and when he cast new light upon the processes of fertilization through his startling experiments with simple sodium chlorides and magnesium solutions on low ...
— Moon-Face and Other Stories • Jack London

... of water on soap is affected very considerably by the presence of certain substances dissolved in the water, particularly salts of calcium and magnesium. Caustic soda exerts a marked retarding effect on the hydrolysis, as do also ethyl and amyl alcohols ...
— The Handbook of Soap Manufacture • W. H. Simmons

... bismuth by the mouth. A good big dose of oil at the beginning is always necessary. If, however, the stomach is irritable and will not tolerate castor oil, we may substitute calomel in one-fourth-grain doses every hour for six doses, to be followed by citrate of magnesium. Irrigation of the colon in these cases is one of the essential means of successful treatment; it should be done twice a day during the first ...
— The Eugenic Marriage, Volume IV. (of IV.) - A Personal Guide to the New Science of Better Living and Better Babies • Grant Hague

... the Black Forest—sometimes the Rhine far off, on its Rhine plain, like a bit of magnesium ribbon. But not to-day. To-day only trees, and leaves, and vegetable presences. Huge straight fir-trees, and big beech-trees sending rivers of roots into the ground. And cuckoos, like noise falling in drops off the leaves. And me, a fool, sitting by a grassy wood-road with a pencil and a book, ...
— Fantasia of the Unconscious • D. H. Lawrence

... near Braunschweig, distributes the following circular: "The principal generators of incrustation in boilers are gypsum and the so-called bicarbonates of calcium and magnesium. If these can be taken put of the water, before it enters the boiler, the formation of incrustation is made impossible; all disturbances and troubles, derived from these incrustations, are done away with, and besides this, a considerable ...
— Scientific American Supplement, No. 286 - June 25, 1881 • Various

... should be poured into cold water. Glass vessels containing boiling sulphuric acid should be handled as little as possible, and should not be cooled under the tap. The action of diluted sulphuric acid on metals closely resembles that of dilute hydrochloric acid. Magnesium, aluminium, iron, zinc, nickel, cobalt, manganese, and cadmium dissolve, with evolution of hydrogen, in the cold acid, or when warmed. The action of hot and strong sulphuric acid is altogether different; ...
— A Textbook of Assaying: For the Use of Those Connected with Mines. • Cornelius Beringer and John Jacob Beringer

... decomposition. When it exists in the gas the silicon is derived from certain silicides in the carbide; but this impurity will be dealt with by itself in a later paragraph. The ammonia arises from the action of the water upon magnesium, aluminium, or possibly calcium nitride in the calcium carbide, which are bodies also produced in the electric furnace or as the carbide is cooling. In the gas itself the ammonia exists as such; the phosphorus exists mainly as phosphine, ...
— Acetylene, The Principles Of Its Generation And Use • F. H. Leeds and W. J. Atkinson Butterfield

... kind, from which (as well as from every available building near the river) magnesium bombs were shot off by photographers, while reporters shouted for news of the disaster and photographs of passengers, the Carpathia drew slowly to her station at the Cunard pier, the gangways were pushed across, and we set foot at last on American ...
— The Loss of the SS. Titanic • Lawrence Beesley

... with a hard and yet in its way humane realism which put any courage of mine in that direction to the blush, he was all for meditating on the state and nature of man, his chemical components—chlorine, sulphuric acid, phosphoric acid, potassium, sodium, calcium, magnesium, oxygen—and speculating as to which particular chemicals in combination gave the strange metallic blues, greens, yellows and browns to the decaying flesh! He had a great stomach for life. The fact that insects were at work shocked him not at all. He ...
— Twelve Men • Theodore Dreiser

... liberating free fluorine. This reaction could only take place on a planet receiving lots of ultra-violet because so much energy is needed to break up carbon tetrafluoride and hydrofluoric acid. The plant catalyst (doubling for the magnesium in chlorophyll) is nickel. The plants are colored in various ways. They get their metals ...
— Uller Uprising • Henry Beam Piper, John D. Clark and John F. Carr

... and a quantity of calcareous dust. In the left kidney there was a calculus weighing 9 3/4 ounces, besides a quantity of calcareous dust. The calculi in this case consisted chiefly of phosphate of magnesium and ammonium. Cordier of Kansas City, Mo., successfully removed a renal calculus weighing over three ounces from a woman of forty-two. The accompanying illustration shows the actual ...
— Anomalies and Curiosities of Medicine • George M. Gould

... tartrate of lime, in the form of a granulated, crystalline powder, into pure water, together with some sulphate of ammonia and phosphates of potassium and magnesium, in very small proportions, a spontaneous fermentation will take place in the deposit in the course of a few days, although no germs of ferment have been added. A living, organized ferment, of the vibrionic type, filiform, with tortuous motions, and often of immense length, forms spontaneously ...
— The Harvard Classics Volume 38 - Scientific Papers (Physiology, Medicine, Surgery, Geology) • Various

... been told of a burglar who accidently discharged a magnesium light connected with a kodak on the shelf. The hour was midnight and everyone in the house was asleep. But the kodak was awake and at work. Frightened by the sudden light, the thief fled, leaving his spoil behind. ...
— A Man's Value to Society - Studies in Self Culture and Character • Newell Dwight Hillis

... in fruits are iron, lime, sodium, magnesium, potash, and phosphorus. These are in solution in the fruit juices to a very great extent, and when the juices are extracted the minerals remain ...
— Woman's Institute Library of Cookery, Vol. 5 • Woman's Institute of Domestic Arts and Sciences

... sight it was. Magnesium star-shells were continually being sent up by the Germans. They hung in the air alight for about thirty seconds, illuminating the ground like day. When they disappeared the guns flashed out; then the French replied; after that more star-shells; then the guns spoke again, and so ...
— How I Filmed the War - A Record of the Extraordinary Experiences of the Man Who - Filmed the Great Somme Battles, etc. • Lieut. Geoffrey H. Malins

... freshly precipitated Barium Sulphate, or "Flake White," with Water containing enough Gum Arabic to prevent the immediate settling of the substance. Starch or Magnesium Carbonate may be used in a similar way. They must ...
— One Thousand Secrets of Wise and Rich Men Revealed • C. A. Bogardus

... to explore it. This, however, was done by M. Martel in 1905, but nothing of archaeological interest was found. However, he noticed a sort of ascending chimney that extended too far to be illumined to its extremity by the magnesium wire, and he conjectured that it extended to the surface of the rock above, where was the original entrance, now choked with earth ...
— Castles and Cave Dwellings of Europe • Sabine Baring-Gould

... learned beyond doubt that many of the commonest elements of the earth's crust exist also in other worlds, and, what is of great significance, that the materials most closely connected with living organisms on the earth, such as hydrogen, sodium, magnesium, and iron, are the very ones which are found most widely diffused among the stars. I think I am not wrong in assuming that you are somewhat acquainted with the spectroscope and have made ...
— Daybreak: A Romance of an Old World • James Cowan



Words linked to "Magnesium" :   periclase, carnallite, magnesium carbonate, dolomite, metal, olivine, metallic element, magnesia, bitter spar, magnesite, spinel



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