the same force of attraction acted between any two masses M1 and M2. (Zitzewitz p161) During this time of his life he says it was his prime of his age of invention, and he was looking for the area under a curve and a precise value for the curvature of a curve. (White, p88) Thus brings us to his next equation that will give us the force of gravity between two masses. (White, p88) We will look at the algebraic form of his equation for the force of gravitation between two masses' center. (White, p88) We show this algebraically by F=GM1M 2/d2. (Zitzewitz p161) This is Newton's actual law of gravitation. According to his equation, if the mass of a planet were doubled, the force of attraction would be doubled. (Zitzewitz p161) In the same way, if the planet were attracted toward a star with twice the mass of the sun, the force would be twice as great. (Zitzewitz p161) If they wer!
             ...