Apple and the Moon Video Tutorial
The The Apple and the Moon Video Tutorial explains how Newton derived his argument that gravity was the force that holds the moon in orbit. The inverse square law is introduced and the idea of the universal nature of gravity is emphasized. Numerous examples, illustrations, and animations assist in the explanations. The video lesson answers the following questions:
- How did Isaac Newton develop the idea of the universal law of gravitation?
- What is meant by the saying gravity is universal?