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Hans and Zacharias Janssen
Zacharias is credited with inventing both the original light microscope and the telescope. Zacharias’s microscope could magnify objects up 9 times its original size. He played with different lenses on a tube to try and create some sort of microscope. -
Robert Hooke
Hooke created a cork microscope, the first of its kind. This microscope had the ability to zoom in and out to see objects in greater detail using light. Hooke used a cork microscope to look at different types of organisms. Through this microscope, he discovered cells. Came up with the term of "cell", -
Anton van Leeuwenhoek
van Leeuwenhoek developed the first original microscope. Previous iterations were basically tubes with lenses on each end. Van Leeuwenhoek created the first practical microscopes. With these microscopes he then discovered bacteria and other microscopic discoveries such as the discovery of protozoa. -
Matthias Schleiden
- Claimed that all living things were composed of cells (cell theory)
- Cofounded the cell theory with Schwann. Schledien discovered that all plants have cells. -"free cell formation" which was eventually proved wrong by Virchow
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Theodor Schwann
- Discovered animal cells
- Schwann applied Schleiden’s theory to animals and soon discovered that animals also had cells in them. This proved
- Schledien’s theory.
- Schwann concluded that all mature animals contain embryonic cells.
- Cell Theory
- All living organisms are composed of one or more cells
- The cell is the most basic unit of life
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Rudolph Virchow
All cells come from cells. This theory orgininally came from Robert Remark. But Virchow credited it as his own His theory was the final piece to cell theory HIs theory rejected the conceived notion that life could spontaneously arrive from different things.
