The Story of the Atlantic CableBright, Charles, Sir
History
The Story of the Atlantic Cable
Bright, Charles, Sir
Transatlantic cables
The wires of the Magnetic Telegraph Company had already been carried to
various points on the west and south coast of Ireland; and, in 1852, Mr.
F. N. Gisborne, a very able English engineer, obtained an exclusive
concession for connecting St. Johns, Newfoundland, with Cape Ray, in the
Gulf of St. Lawrence, by an overhead telegraph-line. The idea was to
"tap" steamers coming from London to Cape Race at St. Johns, and pass
messages between that point and Cape Breton, on the other side of the
Gulf, by carrier-pigeons. A few miles of cables were made in England,
and laid between Prince Edward Island and New Brunswick. Mr. Gisborne
then surveyed the route for the land-line across Newfoundland, and had
erected some forty miles of it, when the work was stopped for want of
funds. When in New York in 1854, Gisborne was introduced to Mr. Cyrus
West Field, a retired merchant, who became enthusiastic on the subject,
and formed a small, but strong, syndicate for the practical realization
of Gisborne's scheme. A cable eighty-five miles in length was made in
England, to be laid between Cape Breton and Newfoundland; but after
forty miles had been paid out, rough weather ensued, and the undertaking
had to be abandoned. A fresh instalment was, however, sent out in 1856,
and successfully laid across the Gulf, thus connecting St. Johns with
Canada and the American lines. The conductor of this line instead of
being a single solid wire was, for the first time, composed of several
small wires laid up together in strand form--with a view to avoiding a
flaw in any single wire stopping the conductivity, besides affording
increased mechanical pliability.
[Illustration: FIG. 1.--Newfoundland Telegraph Station, 1855.]
The feasibility of uniting the two vast systems of telegraphy had
engaged the consideration of some of those most prominently associated
with electric telegraphy on both sides of the Atlantic. It had been
already shown that cables could be successfully laid and maintained in
comparatively moderate depths in the Mediterranean, Black Sea, etc., but
the nearest points between the British Isles and Newfoundland are nearly
2,000 miles apart. The greatest length of submarine line which had
hitherto been effectively submerged--110 miles--formed but an
insignificant portion of such an enormous distance; and that, too,
involving a depth of nearly three miles for a large proportion of the
way, instead of about 300 fathoms.
Apart from the engineering difficulties entailed by this vast distance
and depth, the question was then undetermined as to the possibility of
conveying electric currents through such a length in an unbroken
circuit, and at a speed that would enable messages to be passed rapidly
enough in succession to prove remunerative. Various researches had been
made--by Faraday among others--with a view to determining the law in
relation to the velocity of electricity through a conducting-wire.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account