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Francesco Redi
Francesco Redi was a naturalist, physician and poet of the 17th century, Redi began to do experiments related to the refutation theory of spontaneous generation, which, he gave to future follow-ups and experiments to continue with the refutation theory. -
Francesco Redi experiments
In 1668 the experiment of Redi was related to the theory of refutation/spontaneous generation, which consisted of putting three flasks and with those three he covered one, leaving the other open and the third covered it with gauze He watched how the open jar developed, the jar with the gauze, while nothing happened to the lid. After a while, white worms appeared in the open jars, while nothing similar happened in the closed ones, so the conclusion was that spontaneous generation did not exist. -
John Needham
John Needham was a biologist and Catholic priest, born in the United Kingdom in the 18th century, the English biologist, followed the theory of spontaneous generation. -
John Needham experiment
Compared to Redi's experiment, Needham's experiment consisted of boiling a broth of meat, to destroy the already existing microorganisms and placed the container that was not properly covered, since his theory needed air because functions The final conclusion was that the microorganisms had to have developed from the broths. -
Lazzaro Spallanzani
Lazzaro Spallanzani was a Catholic priest biologist. He was named professor of physics and mathematics, logic, Greek and metaphysics and natural science. Spallanzani continued with the theory of spontaneous generation, in which Redi and Needham had worked. -
Lazzaro Spallanzani experiment
Like Needham, Spallanzani performed the same experiment, but concluded in a very different hypothesis that Needham arrived at, Spallanzani's conclusion was that spontaneous generation was false and the microorganisms came from polluted air. -
Louis Pasteur
Louis Pasteur was a French microbiologist and chemist, he was quite recognized by society, for the demonstration of the germ theory of a disease, his development and inoculation techniques, most notably the first vaccine against rabies. -
Louis Pasteur Experiment
Pasteur used containers with long, curved necks, in which he placed a broth that had boiled for a few minutes. When removed from the heat, air entered through the neck, but the microbes were trapped in it. This prevented them from contaminating the liquid and allowed it to be kept sterile indefinitely. The final conclusion was that the concept of spontaneous generation was false, even for the simplest microorganisms.