A History of Wireless Telegraphy: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1901 - 348 páginas |
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Página 270
... wave motion and appearance which the most casual observer must recognise as such . A series of pendulums will do just as well . Any wave ... ethereal elasticity is manifest . Next consider inertia . How would one illustrate the fact that ...
... wave motion and appearance which the most casual observer must recognise as such . A series of pendulums will do just as well . Any wave ... ethereal elasticity is manifest . Next consider inertia . How would one illustrate the fact that ...
Página 271
... waves - viz . , elasticity , and inertia or density ; hence , just as a tuning - fork vibrating it air excites aerial waves or sound , so a discharging Leyden jar in ether excites ethereal waves or light . Ethereal waves can therefore ...
... waves - viz . , elasticity , and inertia or density ; hence , just as a tuning - fork vibrating it air excites aerial waves or sound , so a discharging Leyden jar in ether excites ethereal waves or light . Ethereal waves can therefore ...
Página 272
... ethereal radiation electrically produced , and yet you cannot see it . Why ... Waves have been there all the time in any quantity , but we have not thought ... ethereal waves a yard long . The whole range of vibrations between musical ...
... ethereal radiation electrically produced , and yet you cannot see it . Why ... Waves have been there all the time in any quantity , but we have not thought ... ethereal waves a yard long . The whole range of vibrations between musical ...
Página 274
... waves - to hurry up the vibration until the light becomes visible . No- thing is wanted but quicker modes of ... ethereal vibrations of some millions per second , as I have explained ; but we do not at present seem to know how to ...
... waves - to hurry up the vibration until the light becomes visible . No- thing is wanted but quicker modes of ... ethereal vibrations of some millions per second , as I have explained ; but we do not at present seem to know how to ...
Página 281
... wave of ethereal disturbance which passes outward with a velocity of 185,000 miles per second , and continues to pass outwards for ever , or until it reaches the bounds of the universe . And yet none of our senses informs us of what has ...
... wave of ethereal disturbance which passes outward with a velocity of 185,000 miles per second , and continues to pass outwards for ever , or until it reaches the bounds of the universe . And yet none of our senses informs us of what has ...
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
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