The discussion centers around finding effective experiments to illustrate the law of universal gravitation. Suggestions include the Cavendish experiment, which is complex and difficult to set up in a classroom, and alternatives like dropping objects of different masses to compare their fall times. A notable suggestion involves using two buckets of water to derive a maximum value for the gravitational constant G, where students can experiment with static friction to understand gravitational forces. The conversation emphasizes the importance of simplicity and accessibility in experiments while also mentioning resources for home gravity experiments. Overall, the focus is on engaging students in hands-on learning while effectively demonstrating gravitational principles.