Disproved spontaneous generation by demonstrating that maggots developed without access to meat.
Disproved spontaneous generation by using swan-shaped flask that prevented dust particles from contaminating broth.
provided the earliest record of microbes using his single lens microscope; author of "Micrographia"
Expanded on Hook's observations; Constructed hundreds of microscopes; Considered the "Father of Microbiology"
Developed process of "Tyndallization" by use of a Tyndall Box coated with glycerin to catch any floating bacteria in the air; Used urine flasks to demonstrate the use of a Tyndall Box; Stated that some microbes have very high heat resistance
Discovered heat resistant bacterial ENDOSPORES, which explained why boiling did not always eliminate all microorganisms.
Linked microscopic organisms with disease by studying anthrax, which he infected mice with; Developed Koch's Postulates
Showed that women became infected in the maternity ward after examinations by physicians coming directly from the autopsy room.
Introduced aseptic techniques to keep the medical setting more sterile.
Proposed to test whether or not microorganisms appeared spontaneously after boiling; boiled chicken broth, put it into a flask, sealed it, and waited...microorganisms grew; claimed victory for spontaneous generation
Suggested that microorganisms were still able to enter the flask in Needham's experiment; modified Needham's experiment by placing chicken broth in a flask, sealed flask, drew off the air to create a vacuum, then boiled broth...no microorganisms grew!
Who demonstrated that microbes exist?
Cohn, Pasteur, Tyndall
Who demonstrated that bacteria reproduces rather than spontaneously generates?
Who demonstrated that microbes are responsible for diseases?