Science Source Feb 2010

A snowflake (positive) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (positive) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (negative) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (negative) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (positive) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (positive) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (negative) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (positive) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

A snowflake (negative) photographed by Wilson A. Bentley (1865 - 1931) on a glass plate, who was probably the first person to do so. He used a box cam...

Pelomyxa carolinensis. "Chaos amoeba." Pseudopodia and protoplasmic flow. Mag: 16x. Set 6 consisting of images 2Z7677, 2Z7678, 2Z7679, 2Z7680, 2Z7681,...

Pelomyxa carolinensis. "Chaos amoeba." Pseudopodia and protoplasmic flow. Mag: 16x. Set 10 consisting of images 2Z7673, 2Z7674, 2Z7675, 2Z7676.

Urinary bacteria. A biofilm has developed in a plastic volumetric container used to collect urine of a healthy person for two weeks. The urine volume...

Scanning electron microscopy shows starch granules in the yellow split pea (fractured). Enhanced SEM. Image width: 64 micrometers. Magnification: 1560...

Maple fudge showing sugar crystals surrounded by concentrated and even dried out syrup (dark areas). Enhanced SEM. Image width: 618 micrometers. Magni...

Gluconacetobacter spp. bacteria by SEM. Gluconacetobacter is the genus with the most species, and deploying the greatest variety of physiological capa...

Gluconacetobacter spp. bacteria by SEM. Gluconacetobacter is the genus with the most species, and deploying the greatest variety of physiological capa...

Starch grains in eddo tubers by SEM. Eddo tubers (eddoes) are the smaller variety of Colocasia esculenta tubers, also known as taro root. The skin is...

Starch grains in eddo tubers by SEM. Eddo tubers (eddoes) are the smaller variety of Colocasia esculenta tubers, also known as taro root. The skin is...

Starch grains in eddo tubers by SEM. Eddo tubers (eddoes) are the smaller variety of Colocasia esculenta tubers, also known as taro root. The skin is...

Bacteria in a commercial preparation designed to unclog clogged drains (sinks) and similar pipes. The bacteria colonize the drains and consume the dis...

Bacteria in a commercial preparation designed to unclog clogged drains such as kitchen sinks and bathroom facilities. The bacteria propagate in the di...

Bacteria in a commercial preparation designed to unclog clogged drains such as kitchen sinks and bathroom facilities. The bacteria propagate in the di...

Bacteria cultured in a medium from a commercial preparation designed to unclog clogged drains such as kitchen sinks and bathroom facilities. The bacte...

Starch grains isolated from cassava (manioc, casava, or yuca - Manihot esculenta) tubers. Their flesh can be chalk-white or yellowish. Cassava roots a...

Starch grains isolated from cassava (manioc, casava, or yuca - Manihot esculenta) tubers. Their flesh can be chalk-white or yellowish. Cassava roots a...

Starch grains isolated from cassava (manioc, casava, or yuca - Manihot esculenta) tubers. Their flesh can be chalk-white or yellowish. Cassava roots a...

Starch grains isolated from cassava (manioc, casava, or yuca - Manihot esculenta) tubers. Their flesh can be chalk-white or yellowish. Cassava roots a...

Bacillus amyloliquefaciens is a gram-positive, catalase-positive, aerobic, rod-shaped and motile soil bacterium. It forms a strong endospore when the...

Bacillus amyloliquefaciens is a gram-positive, catalase-positive, aerobic, rod-shaped and motile soil bacterium. It forms a strong endospore when the...

Azospirillum species bacteria are connected with rhizosphere biofilms, where they are associated with the roots of various grasses, cereals, and tuber...

Azospirillum species bacteria are connected with rhizosphere biofilms, where they are associated with the roots of various grasses, cereals, and tuber...

This micrograph depicts the histopathologic changes seen in a human lymph node due to Yersinia pestis microorganisms. Buboes are due to the swelling o...

This photomicrograph depicts the histopathologic changes in lung tissue in a case of fatal human plague pneumonia. Mag. 160X. Note the moderate suppur...

Histopathologic changes in splenic tissue in a case of fatal human plague; Mag. 400X. Note the presence of general arteriolar inflammation, or arterio...

Blood smear containing Yersinia pestis plague bacteria. Note the characteristic bipolar, safety-pin-like appearance of the Y. pestis organisms. People...

Bipolar staining of a plague smear prepared from lymph aspirated from an adenopathic lymph node, or bubo, of plague patient. *THIS IMAGE MAY NOT BE US...

Dark stained bipolar ends of Yersinia pestis can clearly be seen in this Wright's stain of blood from a plague victim. The actual cause of the disease...

Photomicrograph of Giemsa stained lung tissue from a patient with fatal human plague, revealing pneumonia and an abundance of Y. pestis organisms. *TH...

A color enhanced SEM of a mouse lung, showing bronchioles, pulmonary veins, and arteries; x40 magnification.

A color enhanced SEM of a mouse lung, showing bronchioles, pulmonary veins, and arteries; x40 magnification.

A color enhanced SEM of a mouse lung, showing bronchioles, pulmonary veins, and arteries; x40 magnification.

A color enhanced SEM of a mouse lung, showing bronchioles, pulmonary veins, and arteries; x62 magnification.

A color enhanced SEM of a mouse lung, showing bronchioles, pulmonary veins, and arteries; x62 magnification.

A color enhanced SEM of a mouse lung, showing bronchioles, pulmonary veins, and arteries; x62 magnification.

A color enhanced SEM of a mouse lung, showing a pulmonary vein; x220 magnification.

A color enhanced SEM of a mouse lung, showing a pulmonary vein; x220 magnification.

A color enhanced SEM of a mouse lung, showing a pulmonary vein; x220 magnification.

A color enhanced SEM of a mouse lung, showing a bronchiole.

A color enhanced SEM of a mouse lung, showing a bronchiole.

A color enhanced SEM of a mouse lung, showing a bronchiole.