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Girolamo Fracastoro is known for stating that diseases were transfered through direct and indirect contact. He also stated that diseases could be spread without contact over a long distance.
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Francesco Redi was known for proving that spontaneous generation did not exist, and that maggots found on dead animals were hatched from eggs left by flies.
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Anton van Leeuwenhoek is known for being the first scientist to observe and describe microorganisms.
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John Needham is known for supprting the Spontaneous Generation theory.
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Lazarro Spallanzani was known for being the first to prefrom an In Vtro fertilization, and discovering that mammals need semen and ovum to reproduce.
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Edward Jenner created the small pox vaccine.
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Theodor Schwann was known for discovering Pepsin, which is a digestive enzyme. He also exteneded Matthias Schleiden's cell theory to include animals and all living things.
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Ignaz Semmelweiss created hand washing standards for doctors hadling pregnancies and womens reproductive systems.
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John Tyndall is known for the Tyndall Effect. The Tyndall Effect is used to determine the size and density of particles.
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John Tyndall discovered that water vapor is the most important gas for controlling the Earths temperature.
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Louis Pasteur created Pasteuization which slows down the rate a food spoils.
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Theodor von Dusch is known for creating a filter that could remove bacteria from the air.
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Joseph Lister came up with the idea to use Carbloic acid to sterilize wounds and medical equipment to make surgery safer for patients.
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Robert koch is known for discovering bacteriology and Kochs Postulates
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Charles Chamberland is known for creating the Chamberland Filter which completely filtered out bacteria.
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Louis Pasteur created vaccines for rabies and anthrax, which has saved countless lives.
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These scientists discovered that DNA causes bacterial transformation.
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Aristotle is known for creating the Scientific Method.