schlieren image

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• Schlieren — (from German; singular schliere ) are optical inhomogeneities in transparent material not visible to the human eye. Schlieren physics developed out of the need to produce high quality lenses void of these inhomogeneities. These inhomogeneities… …   Wikipedia

• Schlieren photography — is a visual process that is used to photograph the flow of fluids of varying density. Invented by the German physicist August Toepler in 1864 to study supersonic motion, it is widely used in aeronautical engineering to photograph the flow of air… …   Wikipedia

• Synthetic schlieren — is a process that is used to visualize the flow of a fluid of variable refractive index. Named after the schlieren method of visualization, it consists of a digital camera or video camera pointing at the flow in question, with an illuminated… …   Wikipedia

• Gas — This article is about the physical properties of gas as a state of matter. For the uses of gases, and other meanings, see Gas (disambiguation). Ga …   Wikipedia

• High speed photography — [ Eadweard Muybridge, first published in 1887.] High Speed Photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high speed photography as any set of… …   Wikipedia

• Shadowgraph — is an optical method that reveals non uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function.In principle, we cannot… …   Wikipedia

• motion-picture technology — Introduction       the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …   Universalium

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