Spontaneous Generation (1749-1876) (1 jan 1749 ano – 1 jan 1876 ano)

Descrição:

"Life arises spontaneously from non-living material"

Francesco Redi - Maggots

John Needham (1749) - Scientist/Catholic Priest
- Flasks w/ various broths gave rise to microorganisms even after boiling & sealing w/ a cork
*SUGGESTS SPONTANEOUS GENERATION

Lazzaro Spallanzani (1776) - Animal physiologist/priest
- No bacteria in his broths after boiling - boiled for longer periods & sealed flasks by melting glass
*NO ACCESS TO LIFE FORCE - microorganisms enter broth w/ air