Once upon a time, in a faraway land where science and magic blended, there lived a young curious inventor named Leo. He was fascinated by the stars and the way things moved, and he often wondered why objects always fell to the ground when dropped, no matter where they were. One evening, while sitting by a quiet lake and watching the ripples form from a stone he had thrown, he decided to solve the mystery.

One quiet afternoon, Isaac was sitting under an apple tree in his mother’s garden, deep in thought. The wind was gentle, and the sky was clear. As Isaac relaxed, lost in his thoughts, something unexpected happened: an apple fell from the tree and landed on the ground with a soft thud.

This simple moment sparked a great idea in Isaac’s mind. He began to wonder if the same force that caused the apple to fall might also be responsible for keeping the Moon in the sky, or for the movement of planets. Could there be an invisible force acting on everything? This question would change the course of history.