The Electric TelegraphVirtue brothers & Company, 1867 - 428 pagina's |
Inhoudsopgave
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Overige edities - Alles bekijken
Veelvoorkomende woorden en zinsdelen
adjusting alphabet angles apparatus armature arranged axis beam brass cable charge circuit clockwork cloth coating coils commutator conducting power conductor connected consists constructed copper copper wire core cubic centimetres current passes cylinder Daniell's deflection dial diameter direction disc discharge distance earth electricity electro-magnet electro-motive force element equal equation Fcap galvanometer galvanoscope glass gutta-percha holes inserted insulated intensity knot length letter lever Leyden jar line wire local battery magnetic needle means measuring mercury Messrs metal method millimetre Morse motion observed Ohm's law opposite paper strip placed plates platinum pointer polarised pole positive current pressed printing proportion R₁ ratchet-wheel receiving instrument relay rheostat roller screw shown in Fig shunt side Siemens signals soft iron solution specific gravity spring sulphate sulphuric acid surface tangent galvanometer telegraph temperature terminal tion transmitting tube turned type-wheel upper wheel whilst zinc
Populaire passages
Pagina 4 - he felt himself struck in his arms, shoulders, and breast, so that he lost his breath, and was two days before he recovered from the effects of the blow and the terror.
Pagina 19 - ENGINEER'S GUIDE TO THE ROYAL AND '"' MERCANTILE NAVIES. By a PRACTICAL ENGINEER. Revised by D. F. M'CARTHY, late of the Ordnance Survey Office, Southampton. 3s. 55 PRACTICAL NAVIGATION. Consisting of The Sailor's & Sea-Book. By JAMES GREENWOOD and WH ROSSER. Together with ,_ . the requisite Mathematical and Nautical Tables for the Working of the 204.
Pagina 9 - In electricity he has made a remarkable discovery; you write two or three words on a paper; he takes it with him into a room, and turns a machine enclosed in a cylindrical case...
Pagina 16 - EMIGRANT'S GUIDE TO TASMANIA AND NEW ZEALAND, by James Baird, BA 2s. FINE ARTS. 20. PERSPECTIVE, by George Pyne. 2s. 27. PAINTING ; or, A GRAMMAR OF COLOURING, by G. Field.
Pagina 8 - MANUAL OF HERALDRY, being a concise Description of the several Terms used, and containing a Dictionary of every Designation in the Science. Illustrated by 400 Engravings on Wood. New Edition, fcap. cloth, 3s. MANUAL OF GEOGRAPHY, Physical and Political. For the use of Schools and Families, with Questions for Examination. By EDWARD FARR, with numerous Illustrations. Fcap. cloth, 3*.
Pagina 4 - GRAMMAR, cloth bds., 5s. 6d. 48. Composition and Punctuation, familiarly Explained for those who have neglected the Study of Grammar. By JUSTIN BRENAN. i7th Edition. is. 6d. 49. Derivative Spelling-Book: Giving the Origin of Every Word from the Greek, Latin, Saxon, German, Teutonic, Dutch, French, Spanish, and other Languages ; with their present Acceptation and Pronunciation. By J.
Pagina 26 - When the contact was made, there was a sudden and very slight effect at the galvanometer, and there was also a similar slight effect when the contact with the battery was broken.
Pagina 21 - Is. 6d. 76. GEOMETRY, DESCRIPTIVE, with a Theory of Shadows and Perspective, and a Description of the Principles and Practice of Isometrical Projection, by JF Heather.
Pagina 7 - All things constructed as above, and the minute previously fixed, I begin the conversation with my distant friend in this manner. Having set the electrical machine agoing as in ordinary experiments, suppose I am to pronounce the word Sir; with a piece of glass, or any other electric per se, I strike the wire...
Pagina 19 - QUANTITIES AND MEASUREMENTS, How to Calculate and Take them in Bricklayers', Masons', Plasterers*, Plumbers', Painters', Paperhangers', Gilders', Smiths', .Carpenters', and Joiners