Faitau i le fuaiupu o loo i lalo ma tali le fesili i le gagana lava lea e tasi e pei o le fuaiupu: Fuaiupu: Newton's cannonball was a thought experiment used by Isaac Newton to hypothesize that the force of gravity was universal, and it was the key force for planetary motion. Na aliali mai i lana tusi A Treatise of the System of the World. Fesili: O le a le manatu faataitaiga a Newton na faaaogaina e oo mai i le faaiuga e faapea o le kalave sa tutusa i le va o mea faitino?
O le pulufana a Niutona