万有引力是普遍存在于宇宙中任何物体之间的相互吸引力,它是自然界中物质之间基本的相互作用力之一,任何客观存在的两部分有质量的物体之间都存在着这种相互作用.万有引力定律的发现,使我们更加认清周围的世界,通常的两个物体间的万有引力很小,可以忽略,但天体间的引力却是巨大的,天体与通常物体间的引力也是很大的.例如地球上的物体受到 Gravitation is the universal attraction of any object in the universe. It is one of the basic forces of interaction between the objects in nature. This interaction exists between any objectively existing two-part objects The discovery of the law of universal gravitation makes us more aware of the world around us. The gravitation between two objects is usually negligible, but the gravitation between celestial bodies is enormous. The gravitation between celestial bodies and ordinary objects is also great For example, objects on Earth are affected