What is a brief paragraph about the theorys of ptolemy, copernicus and newton?
Ptolemy (ad100?-170?), Ptolemy proposed a geometric theory to account mathematically for the apparent motions and positions of the planets, sun, and moon against a background of unmoving stars. This work did not include any physical descriptions of objects in space. Nicolaus Copernicus (1473-1543), Polish astronomer, best known for his astronomical theory that the sun is at rest near the center of the universe, and that the earth, spinning on its axis once daily, revolves annually around the sun. This is called the heliocentric, or sun-centered, system. Isaac Newton (1642-1727), English physicist, mathematician, and natural philosopher, considered one of the most important scientists of all time. Newton formulated laws of universal gravitation and motion laws that explain how objects move on Earth as well as through the heavens.
