Cell Theory

Zacharias Jansen

1595
- Invented the microscope
- Counterfeited coins
- Invented the telescope

Robert Hooke

1655
- Coined the word cell
- Published Micrographia
- Designed early compound microscope

Francesco Redi

1668
- One of the first scientists to use the scientific method
- Disproved spontaneous generation
- Helped prove that life spawns from life

Anton Von leeuwenhoek

1675
- Discovered bacteria and protozoa
- Father of microbiology
- Discovered muscle fibers

Robert Brown

1831
- Brownian Motion- random motion of particles
- Discovered the nucleus
- Botanist- pollination fertilization of plant reproduction

Schleiden + Schwann

1839
- Schleiden discovered that all plants are made from cells
- Schwann discovered that all animals are made from cells
- Discovered Pepsin- part of digestive system

Rudy Virchow

1855
- Everything comes from another cell
- Discovered leukemia
- Anti-Darwin

Von Kolliker

1857
- Discovered structure of animal tissue
- Discovered the mitochondria
- Studied embryo development

Robert Koch

1882
- Discovered the causes of TB, Cholera, and other diseases
- Created Koch’s Postulate- bacteria cause disease
- Won the Nobel Prize for Medicine- 1905

Ernst Ruska

1933
- Designed the electron microscope
- Won the Nobel Prize for Physics- 1986

Watson and Crick

1953
- Proposed the double helix
- Won the Nobel Prize for the Double Helix in 1962
- Help of the x-ray pictures from Rosaline Franklin