A History of Wireless Telegraphy Including Some Bare Wire Proposals for Subaqu
A History of Wireless Telegraphy Including Some Bare Wire Proposals for Subaqu
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In our eReader you can find the full English version of the book. Read A History of Wireless Telegraphy Including Some Bare Wire Proposals for Subaqu Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A History of Wireless Telegraphy Including Some Bare Wire Proposals for Subaqu
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To quickly assess the difficulty of the text, read a short excerpt:
The vibrations are too quick for the ear, which responds only to vibrations between 40 and 40, 000 per second. Between the highest audible and the lowest visible vibrations there has been hitherto a great gap, which these electric oscillations go far to fill up. There has been a great gap simply because we have no intermediate sense-organ to detect rates of vibration between 40, 000 and 4, 000, 000, 000, 000, 000 per second. It was, therefore, an un- explored territory. Waves have been there al...l the time in any quantity, but we have not thought about them nor at- tended to them.
It happens that I have myself succeeded in getting electric oscillations so slow as to be audible. The lowest I have got at present are 125 per second, and for some way above this the sparks emit a musical note ; but no one has yet succeeded in directly making electric oscillations which are visible, though indirectly every one does it by lighting a candle.
Here, however, is an electric oscillator which vibrates 300 million times a second, and emits ethereal waves a yard long.
What to read after A History of Wireless Telegraphy Including Some Bare Wire Proposals for Subaqu?
You can find similar books in the "Read Also" column, or choose other free books by Fahie, J. J. (John Joseph), 1846-1934 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The vibrations are too quick for the ear, which responds only to vibrations between 40 and 40, 000 per second. Between the highest audible and the lowest visible vibrations there has been hitherto a great gap, which these electric oscillations go far to fill up. There has been a great gap simply because we have no intermediate sense-organ to detect rates of vibration between 40, 000 and 4, 000, 000, 000, 000, 000 per second. It was, therefore, an un- explored territory. Waves have been there al...l the time in any quantity, but we have not thought about them nor at- tended to them.
It happens that I have myself succeeded in getting electric oscillations so slow as to be audible. The lowest I have got at present are 125 per second, and for some way above this the sparks emit a musical note ; but no one has yet succeeded in directly making electric oscillations which are visible, though indirectly every one does it by lighting a candle.
Here, however, is an electric oscillator which vibrates 300 million times a second, and emits ethereal waves a yard long.
What to read after A History of Wireless Telegraphy Including Some Bare Wire Proposals for Subaqu?
You can find similar books in the "Read Also" column, or choose other free books by Fahie, J. J. (John Joseph), 1846-1934 to read onlineMoreLess
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