File:EB1911 Telegraph - submarine cable - laying on an irregular bottom.jpg

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Description
English: In laying a cable on an irregular bottom it is of great importance that the speed should be sufficiently low. This is illustrated: suppose a a to be the surface of the sea, b c the bottom, and c c the straight line made by the cable; then, if a hill H, which is at any part steeper than the inclination of the cable, is passed over, the cable touches it at some point t before it touches the part immediately below t, and if the friction between the cable and the ground is sufficient the cable will either break or be left in a long span ready to break at some future time.
Date published 1911
Source Encyclopædia Britannica (11th ed.), v. 26, 1911, “Telegraph,” p. 514, Fig. 10.
Author Harry Robert Kempe (section author)
Permission
(Reusing this file)
Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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current16:47, 17 February 2016Thumbnail for version as of 16:47, 17 February 2016834 × 154 (49 KB)Library GuyLevel sea; clarify letters slightly
19:40, 16 February 2016Thumbnail for version as of 19:40, 16 February 2016833 × 163 (66 KB)Library Guy{{Information |Description ={{en|1=In laying a cable on an irregular bottom it is of great importance that the speed should be sufficiently low. This is illustrated: suppose ''a a'' to be the surface of the sea, ''b c'' the bottom, and ''c c'' the s...