QED
QED may refer to:
- Quantum electrodynamics, a field of physics
- QED (book), Richard Feynman's book about quantum electrodynamics
- Q.E.D. "Quod erat demonstrandum", a Latin phrase used at the end of a definitive proof.
- QED project, a database of mathematical knowledge
- Queen's Economics Department, at Queen's University in Kingston, ON.
Arts
- QED (techno group), who released Mobius
- Q.E.D. (US TV series)
- Q.E.D. (manga), a Japanese detective comic
- QED (novel), by Gertrude Stein
- QED (play), by Peter Parnell
- QED (rock band), who released Searching for Adjectives
- QED (TV documentary series), a British science series
Computing
- QED (text editor)
- qED (level editor), a discontinued level editor for the Quake computer game
- QEDWiki, an IBM Wiki mashup that utilizes PHP and AJAX
- Quantum Explosion Dynamo, an object in the computer game Commander Keen
Companies
- Quantum Effect Devices, a maker of microprocessors
- QED (Company), an actuarial recruitment firm based in Australia
- Quality Education Data, purveyor of educational marketing data
- QED Books and software, a maths-specialist company, now merged with Tarquin
- KQED, a public broadcasting company based in San Francisco, California
- WQED, a public broadcasting radio and television station in Pittsburgh, Pennsylvania
- QED (audio cables), manufacturer of high end audio cables
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "QED"