Flux is a rate of flow through a surface or substance in physics, and has a related meaning in applied mathematics.

Flux may also refer to:

Science and technology

Biology and healthcare

  • Flux (biology), movement of a substance between compartments
  • Flux (metabolism), the rate of turnover of molecules through a metabolic pathway
  • 4-Fluoroamphetamine (4-FA; PAL-303; "Flux"), a central nervous system stimulant with quasi-amphetamine effects
  • Dysentery, or other diseases called "flux", which cause the loss of fluid by diarrhea or hemorrhage
  • Rheumatism (historically), or "flux", thought to be caused by an excessive flow of rheum or fluid into a joint
  • Slime flux, a bacterial disease that occurs on certain trees

Computing

  • Flux (machine-learning framework)
  • Flux (graphics software), a suite of VRML/X3D viewing/authoring software
  • Flux (software company), a developer of workflow software
  • Flux (text-to-image model), a suite of text-to-image model developed by Black Forest Labs
  • f.lux, a program that adjusts the color temperature of a computer display
  • Fast flux, a DNS technique used by botnets to hide phishing and malware delivery sites

Physics and engineering

Materials

  • Flux (metallurgy), a chemical reducing agent, flowing agent, or purifying agent enhancing success in soldering and like joining of metals
  • Ceramic flux, a substance which lowers the melting point and promotes glass formation in ceramic materials and glasses
  • Secondary flux, a substance which acts as a ceramic flux in combination with other materials or at higher temperatures

Something integrated over a surface

  • Electric flux, the electric field through a surface integrated over the surface's area
  • Luminous flux, luminous intensity integrated over solid angle. Used in photometry
  • Magnetic flux, magnetic field through a surface integrated over the surface's area
  • Radiant flux, the total power emitted by a source. Used in radiometry

Something per unit area

  • Intensity (physics), power per unit area (sometimes also called flux)

People with the name

  • Alfred William Flux (1867–1942), British economist and statistician
  • Robert Flux, guitarist of the band Oomph!
  • Maarten van der Vleuten (born 1967), Dutch composer and producer, alias Flux

Art and entertainment

Fictional characters

  • Flux (comics), a Marvel Comics antagonist opposing the Hulk
  • Flux (Dennis Sykes), a character in the Marvel Comics series 1 Month 2 Live
  • Flux Wildly, a character in the computer game Toonstruck

Literature

  • Flux (novel), a book by Stephen Baxter
  • "Flux", a short story by Michael Moorcock

Music

  • Flux (Alison Goldfrapp album), 2025
  • Flux (Caveman Shoestore album), 1994
  • Flux (Poppy album), or the title song, 2021
  • Flux (Rich Robinson album), 2016
  • Flux, an album by Love Spirals Downwards, 1998
  • "Flux" (Bloc Party song), 2007
  • "Flux" (Ellie Goulding song), 2019
  • "Flux", a song by Lamb of God from New American Gospel, 2000

Other uses in art and entertainment

  • Flux (magazine), a music, comic book and video game magazine of the 1990s
  • MTV Flux, a former television channel in the United Kingdom and Japan
  • Doctor Who: Flux, the thirteenth series of the British science fiction television programme
  • Bit.Trip Flux, the 6th and final main game in the Bit.Trip video game series

Other uses

  • Flux (political party), a political party in Australia
  • Flux, Utah, a ghost town and former mining community in Tooele County, Utah
  • "Flux", the imagery of the River in the fragments of the presocratic philosopher Heraclitus

See also

  • Æon Flux, an animated television show
  • Fluxus, an art movement
  • Fluxx, a card game
  • Influx (disambiguation)