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History of the Microscope and Cell Theory

By chiku2
  • Dec 1, 1292

    Roger Bacon and Nature

    Roger Bacon, a monk who wrote on nature, refernces the use and concept of lenes

  • First Microscope

    First Microscope
    The first microscope was created circa 1600 by Hans and Zacharias Jansen. The microscope was crude and had only 20x magnification

  • Plant Cell Discovery

    Nehemiah Grew established studies of plant cells and made a discovery of the celluear structure in plants.

  • Robert Hooke and Microgphia

    Hooke shows 35 images that were drawn using the aid of the microscope. First to use phase "cell" when working with cork.

  • Leeuwenhoek and Bacteria

    Leeuwenhoek and Bacteria
    Leeuwenhoek discovers bacteria, free-living and parasitic protist sperm cells, blood cells, and more.

  • Cell Nucleus Discovery

    Cell Nucleus Discovery
    Franz Bauer makes the discovery of the plant nucleus.

  • Achromatic Lenses

    Achromatic lenses gave resolution of 1 micron (1/1000 mm)

  • Prototype for Compound Lenses

    Joseph Jackson Lister uses several weak lenses to counter spherical abberation, or the chromatic effect. The lenses gave good images at a certain distance.

  • Binary Fission in Plants

    Barthelemy Dumortier discovers binary fission, or cell division, in plants.

  • Theodor Schwann and Matthias Schleiden propose Cell Theory

    Theodor Schwann and Matthias Schleiden propse the idea of cell theory.

  • Virchow's Theory

    Rudolf Virchow proposes that all living cells must come from pre-existing cells. Proposal based off of Schwann's and Schleiden's Theory

  • Rediscovery of Gregor Mendel's work

    Scientists rediscover the 1866 paper by Gregor Mendel heritable elements in peas.

  • Abbe Sine Condition

    Ernst Abbe's formula, called the Abbe Sine Condition, provided calculations that allowed for the maximum resolution in microscopes possible.

  • Discovery of Mitosis

    Walther Flemming discovers mitosis

  • Louis Pastuer and Microscopy

    Louis Pastuer becomes interesed in microscopy and tries to disprove theory of spontaneous generation

  • Ultramicroscopes

    Richard Zsigmondy created the ultramicoscope and thus could view objects under the wavelength of visible light.

  • Zeiss' UV Microscope

    Carl Zeiss invents UV microscope and increases resolution

  • Unstained Cells

    Zernike finds that unstained cells can be seen using phase angle rays.

  • DNA is Discovered

    DNA is Discovered
    James Watson and Francis Crick discover DNA.

  • Scanning Tunneling Microscope

    Gerd Binnig and Heinrich Rohrer invent the scanning tunneling microscope that can produce 3-dimensional images at the atomic level.