Human thermal plume, schlieren image

Human thermal plume, schlieren image

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Credit: DR GARY SETTLES/SCIENCE PHOTO LIBRARY

Caption: Human thermal plume, schlieren image. 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 the warmth of the human body. The skin convects heat to the surrounding air, which then rises due to buoyancy, creating the human thermal plume. The background colours are due to an optical phenomenon known as Newton's rings. Photographed at Pennsylvania State University, USA.

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Keywords: adult, american, biological, biology, boundary layer, color, colors, colour, colours, convection, convective, fringe, fringes, frontal, gas dynamics laboratory, heat loss, heat transfer, human, human body, imaging technique, interferometer, interferometry, male, man, north america, north american, optical, optics, pennsylvania state university, people, person, physical, physics, refraction, refractive index, schlieren, schlieren image, schlieren photography, silhouette, silhouetted, thermal plume, thermoregulation, turbulence, turbulent flow, united states, usa

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