science timeline hw

__________________Hans and Zacharias Janssen ________________ Believed to have made the first microscope(mainly Zacharias). This microscope was believed that Hans (Zacharias' Father) helped played a big role in the creation due to the fact that they both created lenses together

________________Robert Hooke_______________ Robert Hooke made plenty of improvements to the microscope and also come up with the word "cell".

__________Anton Van Leeuwenhoek __________ Anton created powerful lenses for the microscope and then found out more about the tiny world of cells and found single cell organisms.

_________Robert Brown_________ Robert discovered the nucleus due to the Brownian motion which he discovered when pollen grains in water jiggled around

_____Matthias Schleiden _____ A botanist who found out that all plants are made of cells. Along with this Matthias Schleiden also proposed the idea of these cells are the basic unit of life. (This idea of cells being the basic unit of life, is a tenet of the cell theory)

____Theodor Schwann____ A zoologist who concluded that all animals are made of cells (after combining this research and matthias' research it shows all living creatures are made of cells which is one of the tenets of the cell theory)

_________Rudolf Virchow_________ A physician who did research on cancer cells and concluded that all cells are from other preexisting cells (this is one of the tenets of the cell theory)

_____Francesco Redi_____ Francesco found out how appear out of nowhere or from meat to maggots.

______Louis Pasteur______ Disproved spontaneous generation just like Francesco Redi

__Albrecht von Roelliker__ Albrecht found out that sperm and egg cells were actually cells.