The History of the Microscope

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Presentation transcript:

The History of the Microscope

What is a microscope?! A biological tool which can be used to view objects that can’t be seen with the naked eye. Objects such as… Cells Tissue Microscopic Organisms Mosquito Blood Cells Amoeba

1000 AD First visionary aid was invented. Known as a Reading Stone What do we call these today?

1590 Janssen and Janssen first experimented with multiple lenses in a tube (First Compound Microscope) Compound Microscope Today

1665 (The Discovery of the “Cell”) Robert Hooke viewed cork under his microscope. Called them Cells

1674 (The Father of Microbiology) Anton Van Leeuwenhoek “Father of Microbiology” Created Simple Microscope to view blood, yeast, and insects. Invented knew methods in lens creation Magnification up to 270 diameters

1700-1930’s Improvements were made to increase magnification and viewing capabilities 1830 - Jackson reduces the spherical abberations on lenses Reduced Image Blur 1903 – Zsigmondy develops ultramicroscope Allowed scientists to view objects smaller than wavelength of light (Noble Prize 1925)

1931 (Electron Microscope) Invented by Ernst Rusk Uses electrons rather than light Allows for the viewing of objects as small as the diameter of an atom. Won Ernst Noble Prize in 1953 Rusk’s Electron Microscope (1930’s) Electron Microscope Today

1981 (Scanning Tunneling Microscope) Invented by Binning and Rohrer Allows for 3D magnification Total Magnification 100,000,000X Atomic Level Birth of Nanoscience Won Noble Prize 1986 Binning and Rohrer with their STM Silicon Atoms Surface of a piece of gold

Today In Class Compound Light Microscope Stereo Microscope HRTEM (High Resolution Transmission Electron Microscope) Worlds “Best” Microscope For Scientific Use Total Mag = 47,000,000X AFM (Atomic Force Microscope) Worlds Most Powerful Microscope Allows scientists to view individual atoms Total Mag = >100,000,000X

High Resolution Transmission Electron Microscope Stereo Microscope Compound Microscope High Resolution Transmission Electron Microscope Atomic Force Microscope