ancient astronomers

  • Period: 276 BCE to 194 BCE

    Eratosthenes

    he delivered a way to determine the circumference of the earth proving that the earth is round when people thought the world was flat
  • Period: 90 to 170

    ptolemy

    almagest is one of his most famous books of work and it is basically just a large book of theories set before his time and its important because it set the ground work for all scientist - AD150
  • Period: 1473 to 1543

    nicolas copernicus

    studied deeper into the idea of the heliocentric world and although most people didn't want to accept it he open the doors for others to look at more researchers
  • Period: 1546 to

    tycho brythe

    with his research he cleared the confusion that came with the geocentric idea and proved his hypothesis of heliocentric world meaning the world revolves around the sun
  • Period: 1571 to

    Johannes Kepler

    came up with the three laws of planetary motion and this is important because his research and thinking were above his time, early 1600's
  • Period: to

    issac newton

    he came up with the three laws of motion and this is important because it shows th relationship between objects and motion- 1666
  • Period: to

    albert einstein

    he is most known for his theory of relativity 1902- 1908 and this is important because it explained the law of gravitation and its connection to space witch basically better explained newtons laws with facts