Jump to ContentJump to Main Navigation
Communications Under the SeasThe Evolving Cable Network and Its Implications$
Users without a subscription are not able to see the full content.

Bernard Finn and Daqing Yang

Print publication date: 2009

Print ISBN-13: 9780262012867

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262012867.001.0001

Show Summary Details
Page of

PRINTED FROM MIT PRESS SCHOLARSHIP ONLINE (www.mitpress.universitypressscholarship.com). (c) Copyright The MIT Press, 2018. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a monograph in MITSO for personal use (for details see www.mitpress.universitypressscholarship.com/page/privacy-policy).date: 19 May 2019

Submarine Telegraphy: A Study in Technical Stagnation

Submarine Telegraphy: A Study in Technical Stagnation

(p.9) 2 Submarine Telegraphy: A Study in Technical Stagnation
Communications Under the Seas

Bernard Finn

The MIT Press

This chapter focuses on the innovation of submarine telegraphy, and discusses the history of the development of underwater cables, first proposed by John and Jacob Brett in 1845, and how they differed considerably from landlines. The Brett brothers were able to develop Permalloy, an iron–nickel magnetic material that made up the wrappings of the core of the cable to provide “inductive loading.” Manufacturing this new innovation was accompanied by some difficulties, as witnessed by Charles Bright. It is suggested that the process through which underwater cables were manufactured and developed allowed the cable industry to demonstrate a certain entrepreneurial exuberance that pushed the industry towards the edge of what was technically feasible.

Keywords:   submarine telegraphy, John Brett, Jacob Brett, Brett brothers, underwater cables, Permalloy, inductive loading, Charles Bright

MIT Press Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.