DR GARY SETTLES / SCIENCE PHOTO LIBRARY DR GARY SETTLES / SCIENCE PHOTO LIBRARY
Technician using blasting equipment, schlieren image. Abrablast, an abrasive used in blasting, is being used for industrial cleaning, producing a spherical shockwave and localised turbulence. Schlieren photography highlights the density changes in transparent materials. Light travelling through areas of different density is refracted (bent). This light is shown in schlieren images with an altered brightness or colour.
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