Human Thermal Plume #2
by Gary S. Settles
Title
Human Thermal Plume #2
Artist
Gary S. Settles
Medium
Photograph - Photograph
Description
In still air at room temperature the human body loses waste heat at the same rate as a 100W incandescent light bulb. This waste heat arises from the thermodynamic inefficiency of humans as heat engines. The skin is warm and convects heat to the surrounding air, which then rises due to buoyancy, creating the human thermal plume. It is invisible, but can be imaged in this case by a white-light schlieren-interferometry optical method. Shown here is an adult male subject in silhouette and his thermal plume. The background colors are those of Newton's rings.
Uploaded
July 7th, 2014
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