oa Southern African Journal of Epidemiology and Infection - Virus electron microscopy : Festschrift
Since the introduction of the first electron microscope in 1939, the development of the field of ultra-structure, in both the physical and biological sciences, has been dramatic in its elucidation of problems in both fields. Although the theoretical limit of the resolving power of the instrument 2°A was achieved early in its development, further refinements followed rapidly. Modern instruments are capable of reaching high vacuum levels in relatively short time periods and computerisation has made these instruments remarkably user friendly.
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