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What did spallanzi do to improve upon redi's and needham's work?
Wiki User
∙ 13y ago
He boiled two containers of gravy, assuming that the boiling would kill any microorganisms that were present.
He boiled two containers of gravy, sealed the top of one and left the other open. After a few days had passed he saw the unsealed gravy was teeming with microorganisms, while the closed bottle was clean of microorganisms.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoHe heated his samples longer than Redi and Needham did.
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