40 Famous Inventions Made by Accident

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1. Penicillin

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The scientist Alexander Fleming was so excited about his vacation that he left the town and forgot about dirty Petri dishes on the table in his laboratory. When he got back from the trip, the dishes were all covered with bacteria except one. There was a blob of mold that somehow blocked the bacteria from spreading. Fleming realized that this mold might have an ability to kill a wide range of bacteria. Thus, penicillin was discovered.

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