The Life of Samuel Fb Morse Ll D Inventor of the Electro Magnetic Recording
The Life of Samuel Fb Morse Ll D Inventor of the Electro Magnetic Recording
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In our eReader you can find the full English version of the book. Read The Life of Samuel Fb Morse Ll D Inventor of the Electro Magnetic Recording 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 Life of Samuel Fb Morse Ll D Inventor of the Electro Magnetic Recording
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To quickly assess the difficulty of the text, read a short excerpt:
J. Smith.
"WASHINGTON, February 22, 1838.
" DEAR SIR : I have endeavored to approach a proper estimate of the expense attendant on preparing a complete telegraphic com munication for some distance ; and, taking into consideration the possibility that the experiment may be conclusively tried before the close of the present session of Congress, I have thought that an appropriation for fifty miles of distance would test the practicability of the Telegraph quite as satisfactorily as one hundred, be...cause the obstacles necessary to be overcome would not be more proportion ally in fifty than in one hundred; while at the same time the double circuit necessary in the fifty miles would give a single circuit of one hundred for the purpose of testing the effect of distance upon the passage of electricity. Fifty miles would require a less amount of appropriation, and the experiment could also be sooner brought to a result : Two hundred miles of wire, or wire for two circuits for fifty miles of dis tance, including the covering of the wire with cotton, at $100 per mile $20, 000 Other expenses of preparation of the wire, such as caoutchouc, wax, resin, tar, with reels for winding, soldering, etc.
What to read after The Life of Samuel Fb Morse Ll D Inventor of the Electro Magnetic Recording?
You can find similar books in the "Read Also" column, or choose other free books by Samuel Irenus Prime to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
J. Smith.
"WASHINGTON, February 22, 1838.
" DEAR SIR : I have endeavored to approach a proper estimate of the expense attendant on preparing a complete telegraphic com munication for some distance ; and, taking into consideration the possibility that the experiment may be conclusively tried before the close of the present session of Congress, I have thought that an appropriation for fifty miles of distance would test the practicability of the Telegraph quite as satisfactorily as one hundred, be...cause the obstacles necessary to be overcome would not be more proportion ally in fifty than in one hundred; while at the same time the double circuit necessary in the fifty miles would give a single circuit of one hundred for the purpose of testing the effect of distance upon the passage of electricity. Fifty miles would require a less amount of appropriation, and the experiment could also be sooner brought to a result : Two hundred miles of wire, or wire for two circuits for fifty miles of dis tance, including the covering of the wire with cotton, at $100 per mile $20, 000 Other expenses of preparation of the wire, such as caoutchouc, wax, resin, tar, with reels for winding, soldering, etc.
What to read after The Life of Samuel Fb Morse Ll D Inventor of the Electro Magnetic Recording?
You can find similar books in the "Read Also" column, or choose other free books by Samuel Irenus Prime to read onlineMoreLess
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