DR GARY SETTLES / SCIENCE PHOTO LIBRARY DR GARY SETTLES / SCIENCE PHOTO LIBRARY
Rifle shot, schlieren image. Full-scale schlieren photograph of a woman firing a bullet from a rifle. The image shows shockwaves from the passage of the supersonic bullet and the muzzle blast, as well as a white cloud of propellant gas ejected from the muzzle after the bullet. 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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