Thermal Shadow #4
by GIPhotoStock
Title
Thermal Shadow #4
Artist
GIPhotoStock
Medium
Photograph - Photograph
Description
A man's hand was placed flat on a wooden surface for about a minute. After the hand was removed, the surface remained warmer than its surroundings and kept the thermal imprint, or "shadow," for some time. Thermography is a technique for visualizing the temperature of objects by recording the thermal emission at infrared wavelengths. This image was acquired with a specialized camera that uses a focal-plane array of vanadium oxide microbolometers as a sensor. It is sensitive to electromagnetic radiation in the wavelength range of 8 to 14 micron. The camera produces a 320x240-pixel image where different colors correspond to different temperatures.
Uploaded
September 29th, 2014
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