What he found and observed was how white light had the ability to be separated by a prism. In which led to a spectrum of different colors, and each had their own unique refractivity (see figure 2). He had taught optics at the University of Cambridge from 1670 to 1672. He came up with what he called, Newton’s theory of color. This theory was the realization that color happens when it collides with already-colored light, rather than light making up itself. Newton also gathered that a refracting telescope has a reaction of the dispersion of light into colors. In 1668, to prove this, he took a telescope and used a mirror, and this lends a hand in proving Newton’s theory. This telescope was the first operational one in its time. This design is known as the Newtonian telescope. (Isaac Newton 1,)
Isaac Barrow was the name of Newton’s mentor, and he played a big role in presenting Newton’s telescope to the scientific community. (Silverman, 1) In 1671, The Royal Society wanted a demonstration of Newton’s telescope. However, they were not as enthused as Newton was about his findings in optics. A man by the name of Robert Hooke, a previous member, attacked Newton’s methods and gatherings. Many other people questioned Newton’s conclusions in optics, while others still considered him to be a genius (see figure 3). (Isaac Newton,