A microscope is a device used to view objects too small for the unaided eye. Objects that are only seen through a microscope are microscopic, which means very small. Microscopes provide an enlarged image of a small object. It is impossible to say who invented the compound microscope. Dutch spectacle-makers Hans Janssen and his son […]
A simple microscope is a microscope that uses only one lens for magnification, and is the original light microscope. Van Leeuwenhoek’s microscopes consisted of a single, small, convex lens mounted on a plate with a mechanism to hold the material to be examined (the sample or specimen). Demonstrations by British microscopist Brian J. Ford have […]
A dissecting microscope, sometimes known also as stereo microscope or comparison microscope, is a device used to analyze side-by-side specimens. It consists of two microscopes connected to an optical bridge, which results in a split view window. The dissecting microscope is used in forensic sciences to compare microscopic patterns and identify or deny their common […]
Handguns predominated as the firearm of choice in shooting-related crimes, especially in the United States of America. As with most firearms, the fired ammunition components may acquire sufficient unique and reproducible microscopic marks to be identifiable as having been fired by a single firearm. Making these comparisons is correctly referred to as firearms identification, or […]
Comparison of microscope has evolved, since the mid-1920s Sacco and Vanzetti Case, into an instrument with many optical, mechanical and electronic refinements, including fiber optic illumination, video capabilities, digital imaging, automatic exposure for conventional photography, etc. Despite this evolution, however, the basic tools and techniques have remained unchanged in their essential details which are to […]
A microscope is an instrument used to view small objects that cannot be seen by the naked or unaided eye. The science of investigating small objects using such an instrument is called microscopy and the term microscopic means minute or very small. Microscopes give us a large image of a tiny object. The microscopes we […]