Images Dated 14th February 2005

Coloured TEM of a neutrophil from bone marrow

Neutrophil cell. Coloured transmission electron micrograph (TEM) of a human neutrophil cell from a bone marrow culture. Neutrophils are involved in inflammatory responses to tissue damage, where they engulf and destroy microorganisms. Here, the cell's lobed nucleus (dark blue) containing chromatin (light blue) appears in two pieces due to sectioning. Within the cytoplasm (green) are numerous membrane-bound granules (brown). These contain enzymes responsible for bacterial destruction. A few mitochondria (long, green) can also be seen in the cell. Neutrophils are highly mobile and can squeeze through tiny spaces in an amoeboid manner. Magnification: unknown

© Steve Gschmeissner/Science Photo Library

Carpet beetle hair, SEM

Carpet beetle hair. Coloured scanning electron micrograph (SEM) of the spear-headed hair (hastisetae) of a carpet beetle larva (family Dermestidae). These hairs, which are found at the back of the beetle, can cause lung and skin irritation, and gastric problems. Carpet beetle larvae are found in the dirtier areas of homes. Because of their hairy appearance they are often known as woolly bears. They are a significant pest, feeding on animal materials including fur, feathers, hair, leather and other fabrics, and stored food products

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Drinking beer, thermogram

MODEL RELEASED. Drinking beer. Thermogram of a man drinking a bottle of beer. The colours show variation in temperature. The scale runs from white (warmest) through red, yellow, green and blue to purple (coldest). The bottle of beer has been refrigerated. Thermography records the temperature of surfaces by detecting long- wavelength infrared radiation

© TONY MCCONNELL/SCIENCE PHOTO LIBRARY