maggots and disprove spontaneus generation
boil gravy, leave open and microorganisms appear (believe in spontaneous generation)
boil gravy, leave one open and other closed, microorganisms and no microorganisms (respectively)
boiled broth, curved neck and no microorgainsm --->break neck and microorganisms appear (also made first vaccine against anthrax)
James Watson and Francis Crick
determined the structure of DNA (got Nobel Peace Prize)
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