History Flashcards
60 AD
Seneca reported that small objects could be seen more clear through glass globules filled with water. Fist mag glass
1590
Hans and Zacharias Janssen placed two convex lenses in tubes to create a microscope. Creates light microscope
1665/55
Robert Hooke Publishes a book describing the structure of sliced cork as empty boxes or rooms and called them cellulae. Actually dead empty cells
1676
Anton Van leeuwenhoek used a microscope to describe materials including bacteria. He describes reprod of unicellular organisms. Used microscope to observe tissue which had never been seen
1809
Jean lamark says all living things are made of a mass of cells in and out of which complex solutions move
1838
Matthias Schleiden and Theodore Schwann says plant and animal cells similar as the contain cells
1839
Schwanns paper proposed fist to cell theory parts
1931
Ernest ruska and max knoll electron microscope
Late 1859
Rudolf virchow says cells come from pre existing cells