We have to change our previous concepts about gravity to a new one, that the equal and opposite charges e^-+e^+ or 2e are the two equal and opposite halves of the circular motion of an electron revolving a proton in hydrogen atom as this is the basic revolving system extended naturally in the larger system of a planet revolving the Sun or the Moon revolving the Earth. This means that what we call gravity is nothing but a neutral charge in the small and large systems, and by proving this fact the biggest puzzling problem in the history of science about the nature of gravity finds at last a successful explanation
Keywords: Gravity, Neutral Charge
