Comparison Microscope

A comparison microscope is a device used to analyze side-by-side specimens. It consists of two microscopes connected by an optical bridge, which results in a split view window enabling two separate objects to be viewed simultaneously. This avoids the observer having to rely on memory when comparing two objects under a conventional microscope.

Read more about Comparison Microscope:  History, Modern Comparison Microscope, Forensic Ballistics

Other articles related to "comparison microscope, comparison, microscope":

Calvin Goddard (ballistics) - Comparison Microscope
... Gravelle, developed the comparison microscope for the identification of fired bullets and cartridge cases with the support and guidance of Major Calvin H ... from which a bullet or cartridge case has been fired is identified by the comparison of the unique striae left on the bullet or cartridge case from the worn, machined metal of the barrel, breach block ... As long as he could inspect only one bullet at a time with his microscope, and had to keep the picture of it in his memory until he placed the comparison bullet under ...
Sacco And Vanzetti - Second Appeal To The Supreme Judicial Court
... same time, Major Calvin Goddard, a ballistics expert who had helped pioneer the use of the comparison microscope in forensic ballistic research, offered to conduct an ... Using the comparison microscope, Goddard compared Bullet III and a.32 Auto shell casing found at the South Braintree shooting with that of several.32 Auto test cartridges fired ...
Comparison Microscope - Notable Cases - St. Valentine's Day Massacre
... In 1929, using a comparison microscope adapted for the ballistics comparison by his partner, Phillip Gravelle, Goddard used similar techniques to absolve the ... Massachusetts, is responsible for popularizing the use of the comparison microscope for bullet comparison ...

Famous quotes containing the word comparison:

    Envy and jealousy are the private parts of the human soul. Perhaps the comparison can be extended.
    Friedrich Nietzsche (1844–1900)