Louis Pasteur was one of the first scientists to discover the role of microorganisms in disease and how sickness could be prevented by vaccines. At the time, it was widely believed that ...

While working with the French wine industry in 1848, Dr. Louis Pasteur studied tartaric acid, a blackish purple substance that grows on the back of wine barrels. By studying this byproduct of wine ...

That is how the story that was read to me as a young child began. It was about a man named Louis Pasteur who believed in himself and believed in the existence of germs. Because he believed in ...