Church officials in Rome are impressed with Galileo's mathematical knowledge but hesitate when he brings up his interest in teaching Astronomy. They worry he will be accused of heresy by the Inquisition and decide that he is better off teaching in free-thinking Venice.
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.
Double D and Ed attempt to perform Galileo's experiment on the effects of gravity on objects of different masses using a bowling ball and a marble. Before beginning, Double D states the assumption that, when dropped in unison, the heavier object will accelerate first. Then, he clarifies and states that objects dropped at the same time, regardless of weight, will hit the floor at the same time.