Black, Harold Stephen - Hutchinson encyclopedia article about Black, Harold Stephen Printer Friendly
The Free Dictionary
1,153,935,078 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Black, Harold Stephen

   Also found in: Encyclopedia 0.06 sec.

Black, Harold Stephen (1898-1983)

US electrical engineer and inventor. In 1921 Black went to work for Western Electric, where after six years of persistent research he solved the problem of distortion in telephone communications. His later research centred on developing a negative feedback system for the blind and deaf.



How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
?Sign in SSL protected
Email:
Password:
Register

? Mentioned in
No references found
 
Hutchinson browser? ? Full browser
 
 
Hutchinson Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.