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Thermogram of a smoker's hand

Thermogram of a smoker's hand

M370/0225

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Credit

ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY

Caption

Thermogram of the hand of a smoker, showing the temperature distribution associated with poor blood circulation (see M370 224 for comparison). Tobacco-smoking damages the arteries supplying blood to various parts of the body; the poor blood supply in the three fingers on the right makes them slightly cooler than they should be, hence they are coloured blue and green. Thermography is an imaging technique for mapping the heat distribution over the surface of a body. Here, the colour-coded image shows temperature variation in 0.1 degree celsius steps, where blue corresponds to the colder areas and yellow corresponds to the hotter areas.

Release details

Model release not required. Property release not required.

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