Artificial gravity is the appearance of a centrifugal force in a rotating frame of reference, as opposed to the force felt in linear acceleration, which is indistinguishable from gravity according to the equivalence principle. But, for a make-believe gravity to work as well as natural gravity, a rotating surface or chamber is required. In June 1991, a Spacelab Life Sciences 1 flight conducted 18 experiments on two men and two women over the course of nine days. The reaction of white blood cells and muscle mass was found to be reduced in the absence of gravity. #antigravity #elonmusk #spacex Elon Musk’s Reveals How SpaceX Starship Creates Artificial Gravity Subscribe Here: https://bit.ly/3tfStk5