The Year-book of Facts in Science and ArtCharles W. Vincent, James Mason Simpkin, Marshall, and Company, 1844 |
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Page 46
... METALS . MR . LUCAS has reported to the British Association the progress of the committee appointed at the last meeting ... metal , to prevent it from breaking . - Mr . J. Taylor ob- served that this subject had been much discussed at ...
... METALS . MR . LUCAS has reported to the British Association the progress of the committee appointed at the last meeting ... metal , to prevent it from breaking . - Mr . J. Taylor ob- served that this subject had been much discussed at ...
Page 48
... metal passes , between the reduction of the ore and its arriving at the state of malleable iron , by the ordinary mode of manufacture ; and then he explains the process which he has invented , and introduced practically at the Shirva ...
... metal passes , between the reduction of the ore and its arriving at the state of malleable iron , by the ordinary mode of manufacture ; and then he explains the process which he has invented , and introduced practically at the Shirva ...
Page 50
... metals in commerce , is not to be met with pure in the other metals , however , the impurities do not generally tend to the injury of the metal ; but the impurities of zinc generate a galvanic current , by which the metal is rapidly ...
... metals in commerce , is not to be met with pure in the other metals , however , the impurities do not generally tend to the injury of the metal ; but the impurities of zinc generate a galvanic current , by which the metal is rapidly ...
Page 51
... metal is somewhat difficult . The cleansed object is immersed in the silver solution , and connected with the zinc pole by means of a conducting wire , and a platinum plate immersed in the liquid at some distance from the object to be ...
... metal is somewhat difficult . The cleansed object is immersed in the silver solution , and connected with the zinc pole by means of a conducting wire , and a platinum plate immersed in the liquid at some distance from the object to be ...
Page 52
... metal was intended for the shaft of her majesty's steam - frigates . It was placed on two strong trucks , and was drawn through the streets by eleven powerful horses , twenty or thirty men holding by drag ropes in the rear to pre- vent ...
... metal was intended for the shaft of her majesty's steam - frigates . It was placed on two strong trucks , and was drawn through the streets by eleven powerful horses , twenty or thirty men holding by drag ropes in the rear to pre- vent ...
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Common terms and phrases
Academy of Sciences acid action ammonia Analytical Engine animal apparatus appears atmosphere battery boiler British Association Bude light carbon carbonic acid chemical cloth coal coating colour combustion comet common consists construction containing copper cubic centimetres cylinder David Bogue deposit depth described diameter distance effect electricity employed engine Engravings exhibited experiments feet Fleet Street fossil galvanometer George Cruikshank glass gold heat hydrogen Illustrated inches instrument invention iron length light machine magnetic malic acid Mastodon matter means ment mercury metal minute mode morocco motion nearly nitric acid observations obtained oxide oxygen paper Paris passing Permian phosphorescence pieces piers placed plants plate portion potash present produced purpose quantity rays remarkable Royal sand silver Society solution species specimens steam steel substance sulphate sulphuric acid surface temperature thick tion tube vessel voltaic weight wheel whole wire wood zinc
Popular passages
Page 287 - Cowper's Poems. With Life and Critical Remarks, by the Rev. THOMAS DALE : and 75 fine Engravings by J. Orrin Smith, from Drawings by J. Gilbert. Two vols. crown 8vo. 24s. cloth ; 84s. morocco. " The handsomest of the editions of Cowper."— SPECTAToR.
Page 241 - Some cause there must be, which would explain how the practice has become a necessary of life to whole nations. But it is surely still more remarkable, that the beneficial effects of both plants on the health must be ascribed to one and the same substance, the presence of which in two vegetables, belonging to different natural families, and the produce of different quarters of the globe, could hardly have presented itself to the boldest imagination.
Page 193 - ... which form the lights of the print, to a sufficient depth ; but in glyphography the depth of these parts is formed by the remaining portions of the white composition on the plate, analogous to the thickness or height of which must be the depth on the block, seeing that the latter is, in fact (to simplify the matter), a cast or reverse, of the former. But if this composition were spread on the plate as thickly as required for this purpose, it would be impossible for the artist to put either close,...