A History of Wireless Telegraphy: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1901 - 348 páginas |
No interior do livro
Resultados 1-5 de 33
Página xv
... containing much necessary information for which I could not conveni- ently find room in the body of the work . Appendix A deals with the philosophic views of the relation between electricity and light before and after Hertz , who , for ...
... containing much necessary information for which I could not conveni- ently find room in the body of the work . Appendix A deals with the philosophic views of the relation between electricity and light before and after Hertz , who , for ...
Página 7
... containing an electro- magnet . Davy always spoke of the relay as the " renewer " or the " renewing wire " ; and by dip he meant to dip into mercury , or , as we say nowadays , to close the circuit . end ; or some arrangement like the ...
... containing an electro- magnet . Davy always spoke of the relay as the " renewer " or the " renewing wire " ; and by dip he meant to dip into mercury , or , as we say nowadays , to close the circuit . end ; or some arrangement like the ...
Página 22
... contain a cubic foot , weighing 9000 ounces , of the value of about £ 36 sterling . Owing to the inequalities in the bottom of the ocean , the distance to America might be 3000 miles , and the expense £ 36,000 sterling — a trifle when ...
... contain a cubic foot , weighing 9000 ounces , of the value of about £ 36 sterling . Owing to the inequalities in the bottom of the ocean , the distance to America might be 3000 miles , and the expense £ 36,000 sterling — a trifle when ...
Página 35
... containing " the first really prac- tical suggestion in the direction of inductive telegraphy " ; but , as we now see , it is not the first suggestion , and it is certainly not inductive . journal , to draw attention to a principle upon ...
... containing " the first really prac- tical suggestion in the direction of inductive telegraphy " ; but , as we now see , it is not the first suggestion , and it is certainly not inductive . journal , to draw attention to a principle upon ...
Página 58
... contain the in- ventor's last word on the subject . A , Z ( fig . 4 ) are copper and zinc plates respectively , curved as ... containing a coil of insulated copper wire , No. 16 gauge , wound upon a wooden reel . The ends of the coil are ...
... contain the in- ventor's last word on the subject . A , Z ( fig . 4 ) are copper and zinc plates respectively , curved as ... containing a coil of insulated copper wire , No. 16 gauge , wound upon a wooden reel . The ends of the coil are ...
Outras edições - Ver tudo
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1899 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1900 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1900 |
Palavras e frases frequentes
apparatus arrangement battery cable cells centimetres Cheap Edition circuit communication condenser conducting conductor connected copper wire Crown 8vo Daniell cell Demy 8vo detector diameter discharge distance disturbance Dundee earth effect Elec electric waves electrical oscillations Electrician electro-magnetic employed ether ethereal waves exciter experiments Fcap feet filings Flat Holm galvanometer gutta-percha Hertz Hertzian waves Illustrations inch increase induction coil iron Leclanché cells length Leyden jar light lighthouse Lindsay magnetic Marconi means ments messages metallic method metres microphone miles Morse Muckle Flugga needle obtained ohms ordinary paper parallel pass patent plates poles Portraits possible Post 8vo practical produced Prof Professor receiving instrument reflector relay resistance Scotland Second Edition secondary sending sensitive tube ship shore shown signals space spark-gap sparks station surface telegraph telephone terminals tion transmitting trembler tricity vertical wire vibrations Willoughby Smith wire wireless telegraphy yards
Passagens conhecidas
Página 20 - MATHESON. Can the Old Faith Live with the New ? or, The Problem of Evolution and Revelation. By the Rev.
Página 24 - NICHOLSON. Thoth. A Romance. By JOSEPH SHIELD NICHOLSON, MA, D.Sc., Professor of Commercial and Political Economy and Mercantile Law in the University of Edinburgh. Third Edition. Crown 8vo, 4s.
Página 25 - Katie Stewart. Illustrated boards, 2s. 6d. Valentine and his Brother. New Edition. Crown 8vo, 3s. 6d. Sons and Daughters. Crown 8vo, 3s. 6d.
Página 11 - FERRIER. Philosophical Works of the late James F. Ferrier, BA Oxon., Professor of Moral Philosophy and Political Economy, St Andrews. New Edition. Edited by Sir ALEXANDER GRANT, Bart., DCL, and Professor LUSHINGTON. 3 vols.
Página 14 - HAMILTON. Lectures on Metaphysics. By Sir WILLIAM HAMILTON, Bart. , Professor of Logic and Metaphysics in the University of Edinburgh. Edited by the Rev. HL MANSEL, BD, LL.D., Dean of St Paul's ; and JOHN VEITCH, MA, Professor of Logic and Rhetoric, Glasgow.
Página 24 - OLIPHANT. 3 vols. post 8vo, 25s. 6d. Scientific Religion ; or, Higher Possibilities of Life and Practice through the Operation of Natural Forces.
Página 17 - Post 8vo, 7s. 6d. The Highlands of Scotland in 1750. From Manuscript 104 in the King's Library, British Museum. With an Introduction by ANDREW LANG.
Página 15 - HAY. The Works of the Right Rev. Dr George Hay, Bishop of Edinburgh. Edited under the Supervision of the Bight Rev.
Página 23 - Cessios, and Sequestrations; and the Winding-up of Joint-Stock Companies in Scotland; with Annotations on the various Insolvency and Bankruptcy Statutes; and with Forms of Procedure applicable to these Subjects. By JAMES MURDOCH, Member of the...
Página 6 - Second Edition. Crown 8vo, with numerous Illustrations, 7s. 6d. Cultivated Plants : Their Propagation and Improvement. Including Natural and Artificial Hybridisation, Raising from Seed, Cuttings, and Layers, Grafting and Budding, as applied to the Families and Genera in Cultivation. Crown...