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Period: Jan 12, 1500 to
Microscope and Cell Theory Timespan
A timespan that includes the invention of the first microscope, discovery of cell thory, and the people who were invovled in discovering cell theory -
Invention of the First Microscope
Year: 1590
Place: Netherlands
Made things look 20 to 30 times larger than they really are
First MIcroscope was invented by Zacharias Jansenn
How Did Microscopes Get Invented? -
Anton van Leeuwenhoek
Born in Delft
Considered to be the first microbiologist
Commonly know at the "Father of Microbiology"
First to observe and describe single celled organisms
Discovered the vacuole of the cell
First to witness a live cell under a microscope
Antonie van LeeuwenhoekFrom Wikipedia, the free encyclopedia -
Robert Hooke
Date of birth: July 18, 1635
Freshwater, Isle of Wight, United Kingdom
Scientist, Invented the first reflecting microscope
Surveyed much of London after the great fire in 1666
Assisted Robert Boyle in experiments to formulate gas laws
Early proponent of the theory of biological evolution
Date of death: March 3, 1703
Robert Hooke Wolfram Alpha -
The Red Blood Cell
The first person to describe red blood cells was the Dutch biologist Jan Swammerdam, who had used an early microscope in 1658 to study the blood of a frog.
Unaware of this work, Anton van Leeuwenhoek provided another microscopic description in 1674, this time providing a more precise description of red blood cells, even approximating their size,25,000 times smaller than a fine grain of sand
<a href='http://en.wikipedia.org/wiki/Red_blood_cell' >Red blood cellFrom Wikipedia, the free encyclopedia -
Cell Theory
Cell theory refers to the idea that cells are the basic unit of structure in every living thing.Cell theory refers to the idea that cells are the basic unit of structure in every living thing.
The observations of Hooke, Leeuwenhoek, Schleiden, Schwann, Virchow, and others led to the development of the cell theory. The cell theory is a widely accepted explanation of the relationship between cells and living things.
Cell theory -
The Single Cell Discovery
Anton Van Leeuwenhoek was the first to observe and describe single celled organisms using his handcrafted microscope
Antonie van LeeuwenhoekFrom Wikipedia, the free encyclopedia -
Matthias Jakob Schleiden
Born: April 5, 1804
Co-founder of the cell theory along with Theodor Schwann and Rudolf Virchow
Born in Hamburg
Educated in Heidelberg
Recognized the importance of the cell nucleus
One of the first German biologists to accept Charles Darwin's theory of evolution.
Matthias Jakob SchleidenFrom Wikipedia, the free encyclopedia -
Theodor Schwann
German Physiologist
Place of birth:Neuss, North Rhine- Westphalia, Germany
Co-founder of the cell theory along with Theodor Schwann and Rudolf Virchow
Theodor Schwann declared " All living things are composed of cells and cell products
Theodor Schwann proved the cellular origin and development of the most highly differentiated tissues including nails, feathers, and tooth enamel.
<a href='http://http://en.wikipedia.org/wiki/Theodor_Schwann' >Theodor SchwannFrom Wikipedia, the free encyclopedia</ -
Rudolf Virchow
First to recognize Leukemia cells
Virchow's cell Theory - omnis cellula e cellula = every living cell comes from another living cell (published in 1858)
Widely know for his cotribution on cell theory, which built on the work of Theodor Schwann
Did not initially accept evidence of cell division, believing that it only occurs in most types of cells
Rudolf VirchowFrom Wikipedia, the free encyclopedia -
Transmission Electron Microscope
German physicist Ernst Ruska and electrical enginner Max Knoll constructed the prototype electron microscope, capable of four-hundred power magnification.
Two years later, in 1933, Ruska built an electron microscope that exceeded the resolution attainable with an optical (lens) microscope
Electron microscopeFrom Wikipedia, the free encyclopedia -
Scanning Electron Microscope
Made by Max Knoll in 1935
The SEM was further developed by Professor Sir Charles Oatley and his postgraduate student Gary Stewart and was first marketed in 1965 by the Cambridge Scientific Instrument Company as the "Stereoscan". The first instrument was delivered to DuPont.
Scanning electron microscopeFrom Wikipedia, the free encyclopedia -
Scanning Transmission Electron Microsope
First Scanning Transmission Electron Microsope (S.T.E.M) was built in 1938 by Baron Manfred Von Ardenne, working in Berlin for Siemens.
The results of the S.T.E.M were inferior to the transmission electron Microscope (T.E.M) at that time.
It was destroyed in an air raid in 1944
Scanning transmission electron microscopyFrom Wikipedia, the free encyclopedia
