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David Hochfelder has written 4 work(s)
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cover image for 9781421421247
Product Description: Telegraphy in the nineteenth century approximated the internet in our own day. Historian and electrical engineer David Hochfelder offers readers a comprehensive history of this groundbreaking technology, which employs breaks in an electrical current to send code along miles of wire...read more

Paperback:

9781421421247, titled "The Telegraph in America 1832–1920" | Reprint edition (Johns Hopkins Univ Pr, October 4, 2016), cover price $29.95 | About this edition: Telegraphy in the nineteenth century approximated the internet in our own day.

cover image for 9781421407470
Product Description: Telegraphy in the nineteenth century approximated the internet in our own day. Historian and electrical engineer David Hochfelder offers readers a comprehensive history of this groundbreaking technology, which employs breaks in an electrical current to send code along miles of wire...read more

Hardcover:

9781421407470 | Johns Hopkins Univ Pr, November 20, 2012, cover price $55.00 | About this edition: Telegraphy in the nineteenth century approximated the internet in our own day.

cover image for 9780801886409
Product Description: With his move from Menlo Park, New Jersey, to New York City at the end of March 1881, Edison shifted his focus from research and development to the commercialization of his electric lighting system. This volume of The Papers of Thomas A...read more
By Louis Carlat (editor), Theresa M. Collins (editor), David Hochfelder (editor), Paul B. Israel (editor) and Brian C. Shipley (editor)

Hardcover:

9780801886409 | Johns Hopkins Univ Pr, September 21, 2007, cover price $95.00 | About this edition: With his move from Menlo Park, New Jersey, to New York City at the end of March 1881, Edison shifted his focus from research and development to the commercialization of his electric lighting system.

cover image for 9780801831041
Product Description: The fifth volume of The Papers of Thomas A. Edison covers Edison's invention and development of the first commercial incandescent electric light and power system. In the process he turned his famed Menlo Park laboratory into the first true research and development facility...read more
By Louis Carlat (editor), David Hochfelder (editor), Paul B. Israel (editor) and Keith A. Nier (editor)

Hardcover:

9780801831041 | Johns Hopkins Univ Pr, October 11, 2004, cover price $95.00 | About this edition: The fifth volume of The Papers of Thomas A.

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