What are the stages in the development of Scientific thought from the middle ages to modern times?

Scientific scholars from the period of the Scientific Revolution questioned the authority of

the ancient Greeks. They began to challenge the works of ancient scholars such as

Galen and Ptolemy. Vesalius dissected actual human bodies to find out about human

anatomy. He realized that Galen had made mistakes. When Copernicus applied

mathematics to the study of the movements of the sun and the planets in the sixteenth

century, he found out that Ptolemy's assumptions were incorrect. Thinkers such as

Bacon and Descartes believed that scholars should not depend solely on the writings of

ancient Greek and Roman philosophers, but use scientific approaches such as

experimentation, observation, and mathematics to acquire knowledge about the universe.

Galileo and Newton actually experimented and made very careful observations to make

some of their discoveries. Newton revealed that the universe followed certain laws, and

that human beings could understand the laws. Over time, most people came to accept

this new way of thinking and answering questions about the physical world.