DR GARY SETTLES / SCIENCE PHOTO LIBRARY DR GARY SETTLES / SCIENCE PHOTO LIBRARY
Schlieren image of a technician using blasting equipment. A high pressure air blasting device is being used for industrial cleaning, producing 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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