1590, Zacharias Janssen inventing the first truly compound microscope (two lens in a tube)., 1665, Roberth Hooke, English Physicist, looked and discovered the first cell. He looked at a sliver of a cork through a microscope lens and notice some pores or cells in it., 1674, Anton van Leeuwenhoek built a simple microscope with only one lens. He examine blood, yeast, insects and many other tiny objects. He was the first person to describe the bacteria., 1931, Ernst Ruska invented the electron microscope. It make possible to view objects as small as the diameter of an atom.

SCIENCE 7TH GRADE - MICROSCOPE TIMELINE

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