This was during a time when telescopes didn’t give a clear image. Newton came up with the idea of replacing the mirrors in a refracting telescope with lenses. This new telescope was much more powerful than the refracting, and one tenth different in size.
Newton also discovered the color spectrum. He used a glass prism, and light to create this experiment. He placed the glass prism in front of a beam of light coming through a tiny crack in his window, and that caused colors to reflect.
Newton was the first person to understand the rainbow, and without all his knowledge and hard work it would have taken longer for this information to be discovered.
Newton’s Three Laws of Motion are very important. His discovery helped, and also changed the way we think and handle things. Newton’s First Law of Motion states that, any object in motion stays in motion unless acted on by an outside force. An example of Newton’s First Law is, putting a playing card on top of a cup with a coin, then pulling the card off the cup in a quick movement towards you, and watching the coin fall