Daily Almanac for

Feb 11, 2012

• Skip Navigation
• Home
• Black History Month
• Atlas
• Encyclopedia
• Dictionary
• Thesaurus
• Features
• Quizzes
• Timelines
• Countries

• World & News
• United States
• History & Gov't
• Biography
• Sports
• Arts & Ent.
• Business
• Calendar & Holidays
• Health & Science
• Homework Center

• Fact Monster Kid's reference,
  games, quizzes

Harold Stephen Black

Negative feedback amplifier—Black's negative feedback concept involved feeding systems output back to the input as a method of system control thus helping to eliminate distortion in telecommunications and to extend the frequency range of the amplifier. (1981)

Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.

• • Cite
  • Print
  • Email
  • Bookmark
    • Add bookmark
    • Add to del.icio.us
    • Digg It!
    • Add to Reddit

Premium Partner Content

Related content from HighBeam Research on: Harold Stephen Black

Harold Prince, the legendary director of Fiddler on the Roof, West Side Story, Company, Sweeney Todd and Phantom of the Opera, talked to American Theatre while in rehearsal for Stephen Sondheim's new musical, Bounce, at the Goodman Theatre in Chicago.(Twenty Questions)(Interview) (American Theatre)

Hot-button campaign: his Congressional campaign may be a long shot, but Anthony W. Williams' anti-immigration message might hit home with black voters.(Keeping Current) (The Chicago Reporter)

Master Harold ... and the Boys. (Broadway).(Theater Review) (Daily Variety)

Those dancin' feet: the new season kicks off.(on broadway)(Calendar) (Dance Magazine)

On the move...(News Makers)(William Barrow joins Our Lady of Lourdes Regional Medical Center)(John Chamberlain joins Good Shepherd Medical Center)(Harold Paz joins College of Medicine, and Milton S. Hershey Medical Center) (Modern Healthcare)

Health law.(Florida State Bar licensed specialists)(Directory) (Florida Bar Journal)

Work that endures (The Sondheim Review)

Season Preview 2002-03. (H-M). (American Theatre)

Larry Zox: Stephen Haller Gallery. (Artforum International)

Rapid-American paying Pistner $2.5M a year to head McCrory. (Stephen L. Pistner) (Daily News Record)

Search HighBeam Research for:

Additional search results provided by HighBeam Research, LLC. © Copyright 2005. All rights reserved.

• 
  • Calculator
  • Spelling Checker
  • Place Finder
  • Distance Calculator
  • Periodic Table
  • Conversion Tool
  • Perpetual Calendar
  • Year by Year

24 X 7

Private Tutor

	24 x 7 Tutor Availability
	Unlimited Online Tutoring
	1-on-1 Tutoring

Explore Grade 5 Math , Precalculus Help