![]() ![]() Over the years, microscopes have evolved from the simple,single-lens instrument of Leeuwenhoek, with a magnification of 300,to the present-day electron microscopes capable of magnificationsgreater than 250,000. In 1673, with the aid of a crude microscopeconsisting of a biconcave lens enclosed in two metal plates,Leeuwenhoek introduced the world to the existence of microbial formsof life. ![]() Microbiology, the branch of science that has so vastly extendedand expanded our knowledge of the living world, owes its existence toAntony van Leeuwenhoek. and Sherman, N., Benjamin/CummingsScience Publishing.)ġ.To become familiar with the history and diversity of microscopeinstruments.Ģ.To understand the components, use, and care of the compoundbrightfield microscope.ģ.To learn the correct use of the microscope for observation andmeasurement of microorganisms. (This passage was adapted from Microbiology: A Laboratory Manual,5th edition, Cappuccino, J.S. ![]()
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