John Green explains the Renaissance movement with a particular emphasis on Greek and Roman influences. He indicates that the Renaissance was a period in which many innovations were made in art, architecture, science, and literature. Religious inspiration was at the center of most work.
This clip provides background information on the famous Italian artist, Michelangelo, and jokingly explains that popular culture has influenced the public to think of him as a Ninja Turtle. It mentions the artist's most famous works, the Statue of David and the Ceiling of the Sistine Chapel, and gives a fictional depiction of his work on the masterpiece that is the Ceiling of the Sistine Chapel.
Galileo explains his ideas on astronomy and observation to a young boy. He demonstrates his understanding of the heliocentric theory by moving the boy around a washbowl to show that he may observe the washbowl in a new place when he in fact is the one moving.