Echo

From Wikipedia, the free encyclopedia

Echo may refer to:

• Physics
  • Echo (phenomenon), a natural acoustic phenomenon named after the nymph.
  • Light echo, a visual phenomenon seen when light from a rapidly brightening object such as a nova is reflected from interstellar matter.

• Biology
  • Echovirus, short for "enteric cytopathic human orphan" virus.

• Technology
  • Echo I or Echo II, classes of Soviet submarines.
  • Echo satellite, one of the first communications satellites.
  • Echo sounding, a way to measure water depth.
  • Forward echo, a type of reflection on a transmission line.
  • Reverse echo, a variation on forward echo.
  • Echo cancellation, techniques for reductions in the perception of electrical and acoustic echo.
  • Radiofrequency signals from spins generated after a time delay by some mechanisms in NMR & MRI, e.g. spin echoes and gradient echoes.

• Computing
  • Echo (computing), a Unix and MS-DOS command to display a line of text.
  • ECHO protocol, an internet protocol.
  • Echo (framework), a web framework for Java programming.
  • Echo (fidonet), a discussion forum on FidoNet, similar to a Usenet Newsgroup.
  • Echo (Echonyc.com) an online community, "the East Coast answer to the WELL."

• Fiction and mythology
  • Echo (mythology), a nymph from Greek mythology.
  • Echo (film), a 2003 short film directed by Tom Oesch.
  • Echo (comics), a character in the Marvel universe.
  • The Echoes, aliens from the UK TV series Invasion Earth.
  • Echo Base, the base of operation for the Rebel Alliance in the Star Wars Universe.
  • Echo Point, a Australian soap opera.

• Music
  • Echoes, a suite by prog rock band Pink Floyd
  • Echo Band, a boy band from Egypt.
  • Echo (Band), Rock band from Northern Ireland.
  • Echo (Trapt song), a song by the rock band Trapt.
  • Echo (album), any of several albums by this name.
  • Echo (record label), a recording label.
  • ECHO, a German music award.
  • Echo & the Bunnymen, a rock band.
  • The Echo (venue), a venue in Los Angeles, California.
  • Echo Records, a record label.

• Miscellaneous
  • ECHO (European Commission), the humanitarian aid department of the EU.
  • A letter in the NATO phonetic alphabet.
  • Toyota Echo, a model of automobile sold in North America.
  • Fox's Echo, a chocolate bar.
  • Echo magazine, The Quarterly Echo Student Magazine.
  • 60 Echo, an asteroid.
  • The echo poem Surrealist technique.
  • Metroid Prime 2: Echoes, a 2004 Video game in the Metroid series

• English-language newspapers:
  • The Echo (Irish Newspaper) a regional newspaper in Dublin, Ireland.
  • The Northern Rivers Echo
  • The Northern Echo
  • The Irish Echo
  • The Liverpool Echo
  • The Evening Echo
  • The Northampton Chronicle and Echo
  • The Haliburton Echo
  • Echo Weekly an alternative newspaper in Kitchener, Ontario.
  • The Southern Daily Echo a regional newspaper in Southampton, United Kingdom

• Places
  • Echo, Minnesota
  • Echo, Oregon
  • Echo Township, Minnesota
  • Echo Township, Michigan
  • Echo Lake, Washington

• People
  • Echo Johnson

In Wikipedia, Echo may refer to WikiProject Echo