History of Observers Timeline

  • 100

    Ptolemy 90 a.d.

    He was one of the most influential Greco-Egyptian astronomers of his time, he was also a methematician, geographer, astrologer, poet and writer. He came up with a theory that stated that the Earth was the center of the universe and that all celestial bodies revolved around it. This theory is known today as the geocentristic thoery. Even though his theory wasn't completely correct, he was one of the first astronomers who were able to combine the movement of stars and planets with math, predict th
  • Period: 100 to

    scientists

  • Feb 19, 1473

    Copernicus

    Copernicus was a Polish mathematician. He created a model of the solar system where the sun was the center and Earth as well as the other planets revolved around it. This is now known as the heliocentric theory. Copernicus undrstanding and calculations about the universe helped prove that indeed the sun was the cemter and that Earth as well as the other planets rovolved around it.
  • Dec 14, 1546

    Brahe

    Brahe was born in Scania, and was part of the high nobility of Denmark. He was a well known astronomer, astrologer and alchemist. He was said to be quiet a person, it is said that he would compete with other mathematicians to see who was the best, and that after his nose was cut off he would use a gold replacement. He created an the best instrument before the telescope to look at the universe, this invention allowed him to make important discoveries like planetary motion that later on helped Kel
  • Feb 15, 1564

    Galileo

    Galileo Galilei was an Italian astronomer who lived during the reinassance and questioned the belief that the Earth was the center of the Universe. Galileo studied motion and pendulums, even though he didn't invent the telescope he created one that allowed him to see the surface of the moon and what it contained as well as the moons of Jupiter and the faces of Venus. Galileo supported the Copernicus theory, this caused the church to forbid him from theaching his theories. He was later on condemn
  • Dec 27, 1571

    Kepler

    Kepler was a German astronomer, physist and mathematician. He went to Prague to become Brahe's assitant. Kepler believed strongly on the Copernican System. He came up with the idea that planets didn't move in circles instead they moved in ellipses that were "flattened circles". He continued to investigate the planetary movement and came up with the Laws of Planetary Motion. He stated in his first law that the sun wasn't center of the planets ellipse, this lead to future discoveries of seasons a
  • Newton

    Sir Isaac Newton is known as the most important scientist of all time. This english scientist made many contributions to the scientific field. He worked with light after noticing that it in many cases light destortionated objects while looking at them through a telescope, he was able to demostrate that light was actually made up of many colors and created a reflective telescope that didn't change the way the object looked. He also he also came up with the law of viscocity, but his most important