The Evolution of Gravity

  • 127


    During the 2nd century 101 to 200 A.D years Ptolemy created a complicated system of circles and epicycles, a combination of which could explain all types of movements observed on the sky.(Ancient Greece and Ptolemy)
  • Period: 127 to

    Evolution of Gravity

  • 302


    in the 4th century Aristotle believed that there is no effect or motion without a cause. The cause of the downward motion of heavy bodies, such as the element earth, was related to their nature, which caused them to move downward toward the center of the universe, which was their natural place. (wikipedia)
  • Newton's discovery

    Newton first discovered gravity between 1684 and 1687 when an apple fell on his head from a tree and he started to wonder what would happen if he shot a cannon from the top of a mountain (gravity notes)
  • Cavendish

    Cavendish confirmed what Newton had discovered; all objects are attracted to one another with a mass by the force of gravity between 1797 – 1798 (wikipedia)
  • Einstein

    Einstein published the general relativity of gravitation in 1916. General relativity generalises special relativity and Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or spacetime. (wikiperdia)