Someone told me that this experiment proves that the center of gravity is actually 4000 miles above the earths surface.
Its a simple concept.
If you hold a rope with a weight on the bottom it will point on the center of gravity. Hold a second one, and by calculating where they meet you'll be able to find the center of gravity.

However, this experiment (somehow, I know there's no its actually true that weights would meet above the earths surface) "proves" that the center of gravity is actually 4000 miles above the center of the earth, because the weights diverge.

This makes absolutely no sense to me, and I think its just a badly conducted experiment, and that's why they came to that conclusion.

Any ideas for how in the fuck someone could come to that conclusion? There was obviously some error when it comes to the testing process.