TONY MCCONNELL / SCIENCE PHOTO LIBRARY TONY MCCONNELL / SCIENCE PHOTO LIBRARY
Nose and mouth. Thermogram of a woman's nose and mouth. The image shows variations in temperature by colour-coding, running from white (warmest) through red, orange, yellow and blue, to purple (coldest). The woman's lips (white) are the warmest part of her face and her nose and cheeks (orange) are the coldest parts.
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