Centers of gravity in non-uniform fields

Centers of gravity in non-uniform fields are like special points where things in the field like to move to. It's like when you have a balloon filled with feathers, you can hold it up in the air and all of the feathers will move to the center of the balloon. With a non-uniform field, it is like the balloon is made up of a lot of different materials. Each of these materials in the field has a different size and shape, and they all create different kinds of forces inside the field. When all of these different forces are added together, they create a special point, or center of gravity, where things in the field like to move to.