The Commercial Value of Wireless Telegraphic Communication With the Andaman Ni
The Commercial Value of Wireless Telegraphic Communication With the Andaman Ni
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In our eReader you can find the full English version of the book. Read The Commercial Value of Wireless Telegraphic Communication With the Andaman Ni 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 The Commercial Value of Wireless Telegraphic Communication With the Andaman Ni
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I have caused to be circulated to those present a printed copy of some practical formulae and rules of thumb, drawn up by myself, for arriving with sufficiently approximate accuracy at the height of the pole necessary for communicating to any required distance, and vice versa for finding out how far one can communicate with any pole or mast one happens to possess. They are as follows : Formula Z.
To find height of pole for any given distance at sea : \/distance in sea miles X 12 = height of pol...e in feet.
on land : ^distance in miles X 20 = height of pole in feet.
( 6 ) Rule of Thumb I.
at sea : multiply the approximate square root of the distance in sea miles by 12 to find height of pole in feet.
on land : multiply the approximate square root of the distance in miles by 20 to find height of pole in feet.
Illustration.
For 65 miles at sea : 8 x 12 = 96 feet as height of pole, 30 miles on land : 5| X 20 = 110 feet as height of pole. N. B, The constant effort of those conducting the research into Wireless Telegraphy is to reduce the multipliers 12 and 20, Formula IX.
What to read after The Commercial Value of Wireless Telegraphic Communication With the Andaman Ni?
You can find similar books in the "Read Also" column, or choose other free books by Richard Carnac Temple to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
I have caused to be circulated to those present a printed copy of some practical formulae and rules of thumb, drawn up by myself, for arriving with sufficiently approximate accuracy at the height of the pole necessary for communicating to any required distance, and vice versa for finding out how far one can communicate with any pole or mast one happens to possess. They are as follows : Formula Z.
To find height of pole for any given distance at sea : \/distance in sea miles X 12 = height of pol...e in feet.
on land : ^distance in miles X 20 = height of pole in feet.
( 6 ) Rule of Thumb I.
at sea : multiply the approximate square root of the distance in sea miles by 12 to find height of pole in feet.
on land : multiply the approximate square root of the distance in miles by 20 to find height of pole in feet.
Illustration.
For 65 miles at sea : 8 x 12 = 96 feet as height of pole, 30 miles on land : 5| X 20 = 110 feet as height of pole. N. B, The constant effort of those conducting the research into Wireless Telegraphy is to reduce the multipliers 12 and 20, Formula IX.
What to read after The Commercial Value of Wireless Telegraphic Communication With the Andaman Ni?
You can find similar books in the "Read Also" column, or choose other free books by Richard Carnac Temple to read onlineMoreLess
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