A cog is a tooth of a gear or cogwheel or the gear itself.

Cog, COG, CoG, or The Cog may also refer to:

Science and engineering

  • Rear sprocket of a bicycle
  • Cog (ship), a type of sailboat from the 10th century onward
  • Center of gravity, a spatial point related to an object's center of mass
  • Cluster of Orthologous Groups of proteins; see Sequence homology and MicrobesOnline
  • Conserved oligomeric Golgi complex, that includes COG2, COG4, etc.
  • INSEE code (also code officiel géographique), a numerical indexing code used by the French National Institute for Statistics and Economic Studies
  • Mount Washington Cog Railway, the world's first mountain-climbing cog railway
  • OpenCog, a project that aims to build an open source artificial general intelligence framework
  • Chip on Glass; see Liquid-crystal display

Entertainment and media

  • C.O.G., a 2013 American drama
  • "The Changing of the Guard" (The Twilight Zone), a 1962 episode of the TV series The Twilight Zone
  • "Cog" (advertisement), a British television and cinema advertisement launched by Honda
  • Star Wars Jedi Quest 8: The Changing of the Guard, the eighth book in the Star Wars Jedi Quest series by Jude Watson
  • COG, a 2020 novel by Greg van Eekhout

Fictional characters

  • Coalition of Ordered Governments, a fictional organization from the Gears of War series
  • Cogs, the fictional antagonists in the MMORPG Toontown Online
  • Cogs, the fictional foot soldiers of Power Rangers Machine Empire
  • Cog (comics), a character from the Spawn comics

Music

  • Cog (band), an Australian progressive rock band
  • "Changing of the Guards", a single from Bob Dylan's 1978 album Street-Legal
  • The Changing of the Guard (album), 2010 album by indie rock band Starflyer 59
  • "Change of the Guard", a song from Steely Dan's 1972 album Can't Buy a Thrill
  • "Changing of the Guard", a song from Exodus' 1990 album Impact Is Imminent

Organizations

  • Canberra Ornithologists Group, an Australian ornithological organization
  • Children's Oncology Group, a National Cancer Institute supported clinical trials group
  • Church of God (disambiguation), a name used by numerous, mostly unrelated Christian denominational bodies
  • Council of governments, regional bodies that exist throughout the United States
  • Covenant of the Goddess, a cross-traditional Wiccan group
  • The ISO 3166-1 alpha-3 country code for Republic of the Congo

Other uses

  • Cog (software), an open source audio player for macOS
  • Cog (project), a project at the Humanoid Robotics Group of the Massachusetts Institute of Technology
  • Continuity of government, defined procedures that allow a government to continue its essential operations in case of catastrophe
  • Changing of the Guard (or Guard Mounting), a formal ceremony in which sentries are relieved by their replacements
  • Course over ground, the actual path followed by a vessel from A to B as determined by its course

See also

  • Change of gauge (disambiguation), with various senses in the airline and rail industries
  • C0G, an EIA Class 1 dielectric material with the lowest capacitance/temperature dependence
  • CoG (disambiguation)
  • COGS (disambiguation)
  • Coq, in computer science, was the ancient name of Rocq, an interactive theorem prover
  • Kog (disambiguation)
  • System Settings, an application included with macOS
  • Settings (Windows), a component of Microsoft Windows