The Story of the Atlantic CableBright, Charles, Sir
History
The Story of the Atlantic Cable
Bright, Charles, Sir
Transatlantic cables
The chairman of the company (the Right Honorable J. Stuart Wortley,
M.P.), in the course of a deputation to Lord Palmerston later on,
stated that "far too high charges of electricity were forced into the
conductor. It was evidently thought at that time by certain electricians
that you could not charge a cable of this sort too highly. Thus they
proceeded somewhat like the man who bores a hole with a poker in a deal
board; he gets the hole, to be sure, _but the board is burned in the
operation_."
Professor Thomson (now Lord Kelvin), writing in 1860, expressed the
following opinion:
It is quite certain that, with a properly adjusted
mirror-galvanometer as receiving-instrument at each end, twenty
cells of Daniell's battery would have done the work required, and
at even a higher speed if worked by a key devised for diminishing
inductive embarrassment; and the writer--with the knowledge derived
from disastrous experience--has now little doubt but that, if such
had been the arrangement from the beginning, if no induction-coils
and no battery-power exceeding twenty Daniell cells had ever been
applied to the cable since the landing of its ends, imperfect as it
then was, _it would be now in full work day and night, with no
prospect or probability of failure_.[50]
Summing up the _cause_ of the untimely ending to the ill-used cable,
perhaps the concisest verdict would be, in mechanical-engineering
_parlance_, that "high-pressure steam had been got up in a low-pressure
boiler."
PART III
INTERMEDIATE KNOWLEDGE AND ADVANCE
CHAPTER XII
OTHER PROPOSED ROUTES
North Atlantic Telegraph Project--Exploring Expedition--Ice
Troubles--South Atlantic Telegraph Project.
The gradual failure of the 1858 cable after a short period of working,
and the slow rate at which messages were capable of being transmitted,
naturally deterred capitalists from providing the means for another
cable of such length in deep water.
Several schemes, however, for a fresh line on other routes were brought
forward; and there was an alternative route between Great Britain and
America by which the transmission of the electric current could be
subdivided into four comparatively short sections. This was known in
1860 as the North Atlantic Telegraph project, in which the route was
from the extreme north of Scotland to the Faroe Islands, thence to
Iceland; from there to the southern point of Greenland, and so on to
Labrador or Newfoundland. The distances were (varying a little according
to landing-places selected) approximately:
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.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account