title: QED
text: # QED
  
  QED may refer to:
  
  ## Mathematics and science
  
  * Q.E.D. (quod erat demonstrandum), used at the end of a mathematical proof
  * Quantum electrodynamics, a field in particle physics
  * QED manifesto and project, a database of mathematical knowledge
  * QED: The Strange Theory of Light and Matter, a 1985 physics book by Richard Feynman
  
  ## Computing and electronics
  
  * QEMU Enhanced Disk, a deprecated disk image format for machine emulation and virtualization
  * QED (text editor), a 1960s line-oriented editor
  * Quantum Effect Devices, a microprocessor design company
  
  ## Arts, entertainment, media
  
  ### Literature
  
  * Quod Erat Demonstrandum, a 1903 novel by Gertrude Stein
  * Q.E.D. (novel), a 1930 mystery novel by Lynn Brock
  * Q.E.D. (manga), a 1997 manga by Motohiro Katou
  
  ### Albums
  
  * QED (band), a 1980s Australian band
  * Q.E.D. (Terje Rypdal album), 1993
  * Q.E.D. (Jim Allchin album)
  * QED Records or Emanem Records
  
  ### Stage and screen
  
  * Quod Erat Demonstrandum (film), a 2013 Romanian drama film
  * QED (play), a 2001 play by Peter Parnell about Richard Feynman
  * QED International, a film company
  
  **Television**
  
  * KQED (TV), public television station in San Francisco, California, USA; also known as "QED"
  * Q.E.D. (U.S. TV series)
  * Q.E.D. (UK TV series)
  * WQED (TV), public television station in Pittsburgh, Pennsylvania, USA; also known as "QED"
  
  ### Radio
  
  * KQED-FM (88.5), an NPR radio station in San Francisco, California, USA; also known as "QED"
  * WQED-FM (89.3), an NPR radio station in Pittsburgh, Pennsylvania, USA; also known as "QED"
  
  ## Other uses
  
  * Granville Gee Bee R-6, named "Q.E.D.", a 1930s racing monoplane
  * QED: Question, Explore, Discover, annual skeptical conference held in Manchester, UK
  * Quami Ekta Dal, a regional political party in India
  * Quiet Electric Drive, a US Navy program to develop technologies for silent maritime propulsion
  