With previous attempts to disprove spontaneous generation, they argued that nothing was showing up because when something did, it suffocated. With a swan necked flask, as it's called, air could come in and out of it while the bend in the neck stopped airborne bacteria from infecting the broth.
It showed that microorganisms can only enter the flask as airborne particles.
It showed that microorganisms can only enter the flask as airborne particles.
pasteures hypothesis was if microorganisms could just spontaneously appear out of nonliving thing
Louis Pasteur's experiments brought an end to the theory of spontaneous generation, which proposed that living organisms could arise from non-living matter. Pasteur's work demonstrated that microorganisms do not spontaneously generate but instead come from existing cells.
Pasteur's experiment demonstrating spontaneous generation was considered better because he designed a more controlled experiment with swan-necked flasks that allowed air in but prevented microbes from entering. This disproved the theory of spontaneous generation more conclusively than Spallanzani's experiment which critics argued could have been affected by lack of oxygen.
Louis Pasteur's experiment on spontaneous generation in 1861 involved boiling broth in a flask with a curved neck to prevent dust particles from entering. The broth remained uncontaminated, disproving the theory of spontaneous generation and supporting the idea of biogenesis, which states that living organisms can only arise from preexisting living cells.
Marie Laurent
pasturization
heart
Louis dad's name is jean
Jean-Joseph Pasteur and Jeanne Roqui
Pasteur's experiment permitted air from the outside to mix with air from the inside, which would have allowed any "vital force" to enter and cause the broth to become cloudy if there were such a "vital force.