ROGER HARRIS / SCIENCE PHOTO LIBRARY ROGER HARRIS / SCIENCE PHOTO LIBRARY
Foetus. Computer artwork of a human foetus coloured to represent the surface temperature of its body as if measured by thermography. Thermography uses the detection of long- wavelength infra-red radiation to record the temperature of surfaces, for example skin. Red and yellow represent the warmest areas and green and blue represent the coldest. The umbilical cord that connects the foetus to the placenta is also seen.
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