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I don't know how famous are Iranian physicists,but anyway.Once I was watching one of the videos of the Reza Mansouri's lectures on GR,it was the first or the second lecture in the series I guess and so he was just talking about general aspects of Gravitation.When he was explaining about the quest for a theory of QG,he said maybe Gravitation is not a fundamental force.Well,that wasn't new for me but the thing he said that I haven't heard before,was about the length scales in which gravitation is proved to exist and said there are experiments that demonstrate Gravitation exists down to the micro-scales but in length scales smaller than that,we can't be sure that gravity exists or not!He says other interesting things too but they are irrelevant to my question!
My question is,what are those experiments?Can someone give a reference to one of them?or explain about them?
Thanks
My question is,what are those experiments?Can someone give a reference to one of them?or explain about them?
Thanks