Scientists saw micro-organisms though 18th century microscopes. They believed they were caused by disease and appeared due to illness. Instead of blaming the microbes, people looked for noxious gases - 'miasmas'.
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Pasteur's Employment
Pasteur asked in 1857 to find out why sugar beet, used in fermenting industrial alcohol, soured. He blamed germs in air through his sterilisation experiment.
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Pasteurisation (sterilisation experiment)
Pasteur proved there were germs in the air by sterilising some water and keeping it in a flask that didn’t allow airborne particles to enter – it stayed sterile, but sterilised water in an open flask bred micro-organisms again.
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Robert Koch
He was a German Scientist who read Pasteur’s work and in 1872 began research into the microbes affecting diseased animals and people; he began the process of linking diseases to the microbe that caused them – e.g tuberculosis (TB) and cholera
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Race
Pasteur came out of retirement in 1877 and started competing in the race to find new microbes and combat them. Pasteur looked for cures to anthrax and chicken cholera.
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Team work
Both Pasteur and Koch worked with large teams of research scientists in the Franco-German competition for national prestige.
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Other cards in this set
Card 2
Front
Theory of Spontaneous Generation
Back
Scientists saw micro-organisms though 18th century microscopes. They believed they were caused by disease and appeared due to illness. Instead of blaming the microbes, people looked for noxious gases - 'miasmas'.
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