Newton was a quiet boy. Having lost his father before he was born, he grew up with his grandparents. At 17, soon after he finished schooling, his mother decided that he would be trained to take care of their family farm. But instead of watching sheep, young Newton would spend his time making small tools. His head teacher saw the genius in him and asked his mother to send him to the university. Newton set out for Cambridge in June, 1661, and began his career in scientific research.
Newton was always trying to understand and explain a lot of things in nature. To test a question about colors, he would stare at(凝视) the sun with one eye until all the colors changed. As a result, he had to stay in the dark for several days before his eye returned to normal. Newton was the first to show us that white light is made up of colors mixed together. He was also the first person to understand the rainbow and explain how it forms.
A story goes like this: One day, an apple fell on Newton's head, and it was then that Newton realized that the apple fell towards the Earth and didn't go anywhere else. He thought to himself, "How did this happen?" After doing some experiments，he later knew all objects (物体) always fall towards the Earth's center because the Earth attracts them. He realized that every object in the universe attracts every other object towards it. Then Newton discovered the law of universal gravitation.
Newton was an English physicist, mathematician and astronomer. Because of the significant work Newton has done, he is widely considered as one of the greatest scientists of all time.
