How can i demonstrate Einsteins General theory of Relativity?

How can i demonstrate Einsteins General theory of Relativity using props or a drawing in a black board or an animation on the internet.|||perhaps the easiest way is to reproduce the situation that Eddington photographed while on the island of Principe in 1919.





(curvature of space-time near the sun - which bent the path of light from distant stars - even though photons are massless!).


http://en.wikipedia.org/wiki/Arthur_Stan…





and see the image at the upper right of this link


http://en.wikipedia.org/wiki/Spacetime





note this picture is 2D in the sense that it shows only one plane being curved. in reality all planes look like this. but i think you get the idea...





cheers