HIST 270 AMU The Scientific Revolution Discussion

I’m working on a history writing question and need the explanation and answer to help me learn. We have now explored the Scientific Revolution, the Enlightenment, and science in the 19th century. Which era was the most significant in terms of scientific and intellectual achievement and why? Which individual from this era contributed the most to these developments? A primary source is required for this assignment that was written by this person. How does using the primary source help you better understand him or her?