[1]: http://www.makezine.com/blog/archive/2006/02/how_to_bending_spacetime_in_th.html

I have a real affinity for ‘old fashioned’ science, where simple objects can be made to show things which you can see or touch. It’s a refreshing diversion from buttons and screens.

Well, [here’s something][1] I have to try. Sure, we all have heard that objects with mass have gravity, but it’s always just lingered as an idea in my mind. That experiment uses simple, old concepts to demonstrate the concept right before your eyes.

There’s video available there in case you’re curious but will never perform the experiment. :)