In this display you may place matter at up to six different places in the one dimensional space by clicking the left mouse button at a position below the flat yellow space. The amount of matter you place will depend on the distance below the line the cursor is when you click. The position will be at the horizontal position of the cursor. A green ball whose radius is proportional to the cube root of the mass marks the locatiuon of each deposit. In this display we are only looking at one side of the interaction between space and matter, the effect of matter on the space.