A Simple Visualization of Gravity

Dan Burns from Physics Teachers SOS demonstrates a very simple concept of the space-time by using PVC pipes and a sheet of Lycra fiber which depicts the gravity by visualizing the space-time fabric. He uses different sizes of marbles to demonstrate the effects of the objects against one another and how they react in that space time fabric with a central mass, which in this case he explains about the planetary rotation around a central star with a high mass.