Wireless Telegraphy and Telephony Simply Explained: A Practical Treatise Embracing Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and Its Present Day Applications, Together with a Chapter on the Possibilities of Its Future DevelopmentNorman W. Henley Publishing Company, 1912 - 154 стор. |
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Сторінка viii
... ; Selenium Cells ; The Thermo- phone ; The Electric Arc ; The Speaking Arc ; Wireless Telephony by Means of a Beam of Light . 114-123 } CHAPTER IX The Wireless Telephone ; The Difficulties of Wireless viii TABLE OF CONTENTS.
... ; Selenium Cells ; The Thermo- phone ; The Electric Arc ; The Speaking Arc ; Wireless Telephony by Means of a Beam of Light . 114-123 } CHAPTER IX The Wireless Telephone ; The Difficulties of Wireless viii TABLE OF CONTENTS.
Сторінка xv
... light : Fig . 137. The electric arc . Fig . 138. - Circuit showing how a singing arc is arranged 120 121 122 · Fig . 139. - A logical form of wireless telephone which is im- practical Fig . 140. - DeForest wireless telephone equipment ...
... light : Fig . 137. The electric arc . Fig . 138. - Circuit showing how a singing arc is arranged 120 121 122 · Fig . 139. - A logical form of wireless telephone which is im- practical Fig . 140. - DeForest wireless telephone equipment ...
Сторінка 2
... the world so necessary for even bare existence is accomplished by the energy of the sun stored up in coal , in plants and trees and mountain torrents . Light is known to be vibrations of an extremely rapid 2 WIRELESS TELEGRAPHY.
... the world so necessary for even bare existence is accomplished by the energy of the sun stored up in coal , in plants and trees and mountain torrents . Light is known to be vibrations of an extremely rapid 2 WIRELESS TELEGRAPHY.
Сторінка 3
... Light is known to be vibrations of an extremely rapid period - electromagnetic waves , they are called . Heat can be shown to be of the same nature . Traveling at the rate of over 180,000 miles per second , these two great gifts of the ...
... Light is known to be vibrations of an extremely rapid period - electromagnetic waves , they are called . Heat can be shown to be of the same nature . Traveling at the rate of over 180,000 miles per second , these two great gifts of the ...
Сторінка 6
... light , but longer and so beyond the limits of our spectrum and the vision of the eye ) . The manner in which this is accomplished may be explained by saying that the charge creates a state of strain in the sur- rounding ether , and ...
... light , but longer and so beyond the limits of our spectrum and the vision of the eye ) . The manner in which this is accomplished may be explained by saying that the charge creates a state of strain in the sur- rounding ether , and ...
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50 cents A. A. HOUGHTON adjustable alternating current amateur appliances arranged battery BINDING POST boilers chapters CHART circuit coal coil of wire COMPOUND LOCOMOTIVES connected consists construction contains coupled helix detail detector devices diagram diaphragm direct current discharge drawings dynamos Edition electric waves electrodes engravings equipment ether explained flow fully illustrated gas engine Gasoline heating high frequency oscillations included induction coil instruments insulated Lathes Leyden jar Locomotive machine magnetic field manufacture mechanical messages metal methods modern molds motion motor O'CONOR SLOANE operation pass pipes plumbing potentiometer practical treatise Price primary produced pumps radiate railroad receiving apparatus Rubber secondary selenium showing signals slide SLIDER sound waves spark gap speech steam engine steel telephone receiver telephone transmitter tion transmitting tuning coil turbines types Valve Gear variable condenser vibrations Walschaert Valve Gear wireless station wireless telegraphy wireless telephone