Circadian Clock Gallery
Available as Prints and Gift Items
Sleep. Thermogram of a person asleep in bed. The image shows variation in temperature. The temperature scale runs from red (warmest) through yellow, green, cyan and blue to mauve (coldest). Thermography is a technique for visualising the temperature of surfaces by recording their emission of long-wavelength infrared radiation. This heat radiation is detected electronically and displayed with different colours representing different temperatures. In this case variations on the surface of the bed and the person's face and hands are shown
© DR. ARTHUR TUCKER/SCIENCE PHOTO LIBRARY
Choose from 8 pictures in our Circadian Clock collection for your Wall Art or Photo Gift
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