Tuesday, January 19, 2016

Microscope

Level: English for Junior and Senior High School
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Microscope
Microscope (from the Greek: micros, "small", and skopedia, "to look" or "to see" is an instrument used to see objects that are too small to the naked eyes. The science of investigating small objects using such instrument is called microscopy. Microscopic means invisible to the eye unless aided by a microscope.
There are many types of microscope. The most common and first to be invented is the optical microscope which uses light to image sample. Other major types of microscopes are the electron microscope and the various types of scanning probe microscope. The first microscope to be developed was the optical microscope although the original inventor is not easy to identify. An early microscope was made in 1590 in Middelburg, Netherlands. Two eyeglass makers variously given credit were Hans Lippershey and Zacharias Jansenn.
It was not until the 1660s and 1970s that the microscope was used extensively for research in Italy, Holland, and England. Marcelo Malpigi in Italy began the analysis of biological structures beginning with the lungs. The greatest contribution came from Antoiy Van Leeuwenhoek who discovered red blood cells and helped popularize microscopy as technique.

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