Louis Pasteur had finally decided to apply himself and while at Ecole Normale Superieure he excelled winning many scholastic awards. He did his thesis on the polarization of light with crystals and received a great deal of recognition from it. Did you find the 3 changes? Click to see the next puzzle.
Pasteur then focused on fermentation when he was head of the chemistry department at the University of Strasbourg. He is credited with making huge advances in the production of beer, wine, and alcohol.