How did Galileos findings with the telescope disprove the Ptolemaic theory

How did Galileos findings with the telescope disprove the Ptolemaic theory

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  1. One observation definitely disproved the Ptolemaic model, although it didn't prove that Copernicus was right. This was the observation that Venus has phases, much like our Moon does.

  2. The correct answer is B.

    The Ptolemaic theory stated that the Earth was the center of the universe, and that all celestial elements (sun, stars, other planets, etc) orbited around it. It was supported by religious beliefs and dogmas and these blocked at first the generalization of alternative theories.

    When Galileo Galilei promoted the theory of heliocentrism it generated great controversy. This new theory stated that all celestial elements revolved around the Sun, including the Earth.

    The Inquisition, in 1615, investigated the matter and concluded that heliocentrism was a foolish and absurd philosophy, and that it was also heretical since it was contradicting the sense of Holy Scriptures.

  3. The Ptolemaic theory seems logical based on daily observations of the rising and setting sun because the sun rotates around the earth it is logical but incorrect.

    I hope my answer has come to your help. Thank you for posting your question here in We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

  4. a. He observed that not all heavenly bodies moved around the Earth.


    In 1990, the human being placed in space the most accurate eye to look at the universe, the Hubble Space Telescope. But that would not have been possible without a less technological, but equally revolutionary invention: the telescope presented by Galileo Galilei on August 25, 1609. That refractive instrument - 1,27 meters long, with a convex lens in front and another lens ocular concave- allowed the Italian physicist to become the father of modern astronomy.

    Thanks to that device, Galileo saw that the Sun, considered until then a symbol of perfection, had spots. The astronomer made direct observations of the star, taking advantage of when the clouds interposed to the solar disk, or in the mornings and sunsets, when the luminous intensity was more bearable, a practice that left him totally blind at the end of his life.

    The Moon was not perfect either. Galileo saw what he considered mountains and craters, evidence that the natural satellite, like our planet, was a rocky body and full of irregularities on its surface and not an impeccable sphere made of ether, as it was held back then. These observations questioned the traditional Aristotelian theses on the perfection of the celestial world, which resided in the complete sphericity of the stars.

    The Pisa-born astronomer also noticed that Saturn had strange appendages, which he described as similar to two handles. These "appendices" intrigued astronomers for half a century until 1659, when the Dutch mathematician, physicist and astronomer Christiaan Huygens used more powerful telescopes to unravel the mystery about the changing morphology of the second largest planet in the solar system: those handles were actually his rings.

  5. The Ptolemaic theory of the universe was disproved by Nicolaus Copernicus (1473–1543), letter C and followed by Johannes Kepler (1571–1630). Geocentric theory suggested that the Sun and moon orbited Earth, and the rest of the planets orbited the Sun is Heliocentric theory. Heliocentric theory of Nicolaus Copernicus during the Scientific Revolution on 17th and 18th century while Geocentric theory was proposed by Ptolemy (AD 150) and Aristotle. Today, we believe more on the Heliocentric theory and it has been proven as well.  

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