BIOL 2296 Lecture Notes - Lecture 2: Antonie Van Leeuwenhoek, Chromatic Aberration, Schott Ag
19 Mar 2016
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Document Summary
Antoni van leeuwenhoek (1650s) made a little microscope i. Van leeuwenhoek = animalcules -> how he described seeing all the movement in the various samples i. He thoughts they were small animals in the solutions. Robert hooke - observations through a microscope of 2 lenses i. Wrote micrographia - looked at a needlepoint, razors, spiders, fleas, bark of a cork tree. 2 views of the same structure with different views. Called them cells -> 1st use of the word a. Cells of a monastery where the monks live. Hooke showed that there was organized substructure to tissue a. 1700-4850 there was little acceptance of the idea of cells as substitute of biological material b. Due to poor quality of lenses (chromatic aberration) i. Chromatic aberration - image in lens distort color so there is a colored haze around the object and it is blurry - difficult to distinguish what is part of the specimen.
