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 2
... heat furnishes us more than mere winter and summer and night and day , for we on this earth are not living on our own resources , and the real work of the world so necessary for even bare existence is accomplished by the energy of the ...
... heat furnishes us more than mere winter and summer and night and day , for we on this earth are not living on our own resources , and the real work of the world so necessary for even bare existence is accomplished by the energy of the ...
Сторінка 3
... 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 sun come streaming continually down to us over the inconceivable distance of almost 100,000,000 miles ...
... 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 sun come streaming continually down to us over the inconceivable distance of almost 100,000,000 miles ...
Сторінка 16
... heated air in the path of the lightning expands with great force , but immediately other air rushes in to fill the partial vacuum , thus producing atmospheric waves , which impress the ear as the sound called thunder . Wireless stations ...
... heated air in the path of the lightning expands with great force , but immediately other air rushes in to fill the partial vacuum , thus producing atmospheric waves , which impress the ear as the sound called thunder . Wireless stations ...
Сторінка 36
... heating and increase the efficiency of the machine . A. B FIG . 40. - Lines representing direct and intermittent direct currents . As noted above currents are only induced in a coil when the magnetic field is changing . The interrupter ...
... heating and increase the efficiency of the machine . A. B FIG . 40. - Lines representing direct and intermittent direct currents . As noted above currents are only induced in a coil when the magnetic field is changing . The interrupter ...
Сторінка 43
... heat generated and prevent the spark from arcing . Various metals are used for spark gaps . Silver is probably the best but its expense is prohibitive . A special hard zinc alloy is most generally used . DISCHARGE SURFACE DISK MICA RING ...
... heat generated and prevent the spark from arcing . Various metals are used for spark gaps . Silver is probably the best but its expense is prohibitive . A special hard zinc alloy is most generally used . DISCHARGE SURFACE DISK MICA RING ...
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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 Patent 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
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