Projection, projections or projective may refer to:

Physics edit

  • Projection (physics), the action/process of light, heat, or sound reflecting from a surface to another in a different direction
  • The display of images by a projector

Optics, graphics, and cartography edit

  • Map projection, reducing the surface of a three-dimensional planet to a flat map
  • Graphical projection, the production of a two-dimensional image of a three-dimensional object

Chemistry edit

  • Fischer projection, a two-dimensional representation of a three-dimensional organic molecule
  • Haworth projection, a way of writing a structural formula to represent the cyclic structure of monosaccharides
  • Natta projection, a way to depict molecules with complete stereochemistry in two dimensions in a skeletal formula
  • Newman projection, a visual representation of a chemical bond from front to back

Mathematics edit

Biology edit

  • Projection areas, areas of the brain where sensory processing occurs
  • Projection fiber, in neuroscience, white matter fibers that connect the cortex to the lower parts of the brain or the spinal cord

Linguistics edit

Arts and entertainment edit

Other uses edit

  • Projection (alchemy), process in Alchemy
  • Projections (journal), an interdisciplinary academic journal related to cinema and visual media
  • Power projection, the capacity of a state to implement policy by means of force, or the threat thereof
  • Psychological projection, or "Freudian projection", a defense mechanism in which one attributes to others one's own unacceptable or unwanted attributes, thoughts, or emotions
  • Social projection, a cognitive bias that leads people to believe others are similar to themselves
  • Forecasting, making predictions of the future based on past and present data

See also edit