第七十二天
136、 He noticed that one of his bacteria cultures was infected with a fungus. Most scientists would have tossed the spoiled petri dish in the trash, but not Fleming.
137、 12 percent chromium formed a protective layer on steel when exposed to oxygen
138、Not knowing what they had found, the men sold the blackened scrolls to antiquities dealers in Jerusalem for a few dollars apiece.
136、 He noticed that one of his bacteria cultures was infected with a fungus. Most scientists would have tossed the spoiled petri dish in the trash, but not Fleming.
137、 12 percent chromium formed a protective layer on steel when exposed to oxygen
138、Not knowing what they had found, the men sold the blackened scrolls to antiquities dealers in Jerusalem for a few dollars apiece.










