DR GARY SETTLES / SCIENCE PHOTO LIBRARY DR GARY SETTLES / SCIENCE PHOTO LIBRARY
Gun shot, schlieren image. Full-scale Schlieren photograph of a man firing a bullet from a Smith and Wesson 44 Magnum revolver. The image shows shock waves from the passage of the supersonic bullet and the muzzle blast, as well as clouds of propellant gas. Schlieren photography is an imaging technique that is used to show changes in the density of fluids and gases such as air, caused here by shock waves and turbulence. Photographed at Pennsylvania State University, USA.
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