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Cell Theory and Discovery of the microscope.

  • Hans Jansen and Zacharias Jansen

    Hans Jansen and Zacharias Jansen
    Hans Jansen and Zacharias Jansen created the worlds first compound microscope.
  • Jean Baptiste van Helmont

    Jean Baptiste van Helmont
    Jean Baptiste Van Helmont was the first to question the theory of Spontaneous generation. He considered that things like sulfur, salt, and mercury were created through chemical processes rather than being preexistent.
  • Robert Hooke

    Robert Hooke
    Robert Hooke of England looks through a microscope at a cork. Robert noticed that the cork had small compartments he called cells.
  • Francesco Redi

    Francesco Redi
    Francesco was an Italian scientist who challenged Spontaneous Generation. Francesco Redi was able to disprove the theory that maggots could be spontaneously generated from meat using a experiment. He got a couple of bottles and put meat in them. He covered half of them. Maggots were in the uncovered ones, but not in the covered ones.
  • Anton Van Leeuwenhoek

    Anton Van Leeuwenhoek
    Anton used microscopes to look at organisms in pondwater, later he would draw these things he saw.
  • Rene Dutrochet

    Rene Dutrochet
    Rene (Henri) Dutrochet discovered cells that had existed in plants.
  • Matthias Scheiden and Theodor Schwann

    Matthias Scheiden and Theodor Schwann
    Matthias Schleiden and Theodor Schwann create cell theory. The theory states that all living things are made up of one or more cells. They conduct experiments to help disprove spontaneous generation once and for all.
  • Rudolf Virchow

    Rudolf Virchow
    Rudolf Virchow writes that every cell stems from another cell. He theorizes that all forms of disease come from changes in average cells.
  • Louis Pasteur

    Louis Pasteur
    Louis Pasteur repeated the soup experiment. He stated that flasks with long S shaped necks protected the soup because the micro organisms settled in the neck instead of the soup.
  • Ernst Ruska

    Ernst Ruska
    He invented the first transmission microscope.