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Oct 1, 1214
Writing of lenses
Roger Bacon describes lenses and predicts telescopes -
Oct 2, 1285
Spectacles
Amati invents spectacles, or eye glasses, for people with impaired vision. -
1st Microscope
The 1st microscope was supposedly built by Hans and Janssen, but no one is certain. -
1st Telescope
Galileo created the first telescope with concave and convex lenses. -
Micrographia
Hooke publishes "Micrographia", based on all his observations of cells. -
Discovery of cells
Leeuwenhoek discovers bacteria, protists, sperm cells, blood cells, and more. -
Lense Advancements
Achromatic lenses are introtuced and the improve resolution. -
Cell Theory
Schwann and Schleiden formally propose the concept of "Cell Theory". -
Micrographs
Donne publishes the 1st few micrographs in France. This creates controvesy on micrographs and microscope drawings. -
Cell Theory Expansion
Virchow expanded cell theory, saying that livig cells come from pre-existing cells. -
Mitosis
Flemming discovers cell mitosis using the microscope. -
Advances
Abbe designs apochromatic objective that brings red, yellow and blue into one focus, and the lenses required 10 or more elements. -
Spontaneous Generation Disproved
Pasteur conducts and experiment using an idea generated from cell theory, spontaneous generation, and disproves it. -
1st Electron Microscope
Knoll and Ruska build the first eletron microscope. -
Electron Advances
Ruska builds the first electron microscope, and it exceeds the resolution of the light microscope. It has an accelerating voltage of 75 kV. -
Scanning Electron
The 1st scanning electron microscope is built. -
Ultra-Microtome
The 1st Oltra-Microtome was built by Porter and Blum. -
Scanning Probe Microscope
hte 1st scanning probe microscope is invented (works by measuring current). -
Laser Confocal Microscope
The Laser Confocal Microscope is now commercially available. -
Atomic Force Microscope
The 1st atomic force microscope is invented (measures force instead of current).
