Microscopy techniques have been around for many decades and are always improving. The field itself has had to improve because the samples being analyzed have been getting smaller and smaller, ...

Vladimir Zworykin (1888-1982) was an electrical engineer from Russia who moved to the United States in 1919, worked for the Westinghouse Electric Company, and earned a Ph.D. from the University of ...

Electron microscopes are much more powerful than microscopes using light, but conventional models have a great disadvantage: they cannot be used on living cells or organisms. Their pictures of ...

Scanning electron images show four types of denticle shapes found in bonnethead shark skin, arranged from least to most pointed (A–D). Samples come from juvenile and mature female sharks, revealing ...

With resolution 1,000 times greater than a light microscope, electron microscopes are exceptionally good at imaging materials and detailing their properties. But like all technologies, they have some ...

Electron microscopy has increasingly found more applications in recent years. Every sample has a mixture of optimized settings that must be utilized to enhance the results of the investigation. This ...

Electron microscopy is a powerful technique that provides high-resolution images by focusing a beam of electrons to reveal fine structural details in biological and material specimens. 2 Because ...

THE detail seen in a highly magnified electron micrograph is to-day limited more by a lack of contrast in the image than by any lack of resolution in the microscope, which is now usually capable of ...

Magnified about a hundred times, a mealworm goes from gross to gregarious as part of a series of unusual portraits. A mealworm's magnified face reveals expressive "eyes" and mouthparts. Mealworms are ...