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Galileo's discoveries with the telescope sowed doubts about the ancient Ptolemaic model which had the Earth at the centre. First, Jupiter's moons orbited round Jupiter and not the Earth, the first objects that had been discovered that were not orbiting the Earth. Secondly the discovery of the phases of Venus raised doubt about the Ptolemaic model, particularly the gibbous phase when, we now know, Venus is round behind the Sun as seen from Earth. In the Ptolemaic model Venus never goes behind
the Sun (as seen from Earth) and the gibbous phase cannot happen.
By implying in the title of his book 'Dialogue of the two world systems' that there were only two models in contention, those of Ptolemy and Copernicus, Galielo insinuated that if the Ptolemaic model was incorrect the Copernican system must be correct. This was logically flawed because at the time there were two other systems in the public domain that both explained Venus's phases. These were the models of Tycho, which was geocentric, and finally Kepler's which was heliocentric.
Of these four, Kepler's was eventually accepted by everyone after Newton's theoretical discoveries showed that Kepler's elliptical orbits for the planets agreed with the new theory of dynamics.
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How did Galileo's observations of Jupiter's moons support Copernicus theory?
The discovery did not support Copernicus's theory directly but it raised doubts about the ancient theory of Ptolemy that said that all objects in the sky are in orbit round the Earth. Galileo was an aggressive supporter of Copernicus's theory but eventually it was Kepler's theory that became accepted and is still used today. Both Copernicus and Kepler placed the Sun at the centre but Kepler's elliptical orbits are supported by the later theory of dynamics.
How did galileo's observation support the heliocentric system?
Venus goes through phases similar to those of Earth's moon.#1Direction
How did Galileo observations support the idea of the heliocentric system?
Galileo's observations with his telescope supported the concept of heliocentricism. He noted that the satellites of Jupiter and Venus, based on their range of phases, did not match geocentricism supported by Ptolemy. He noted that based on these findings, that the Heliocentric theory was correct.
What model did Copernicus support?
He thought of and supported the heliocentric model, which states the "heavens" revolve around the Sun.
How did keplers work improve on or support Copernicus heliocentric theory?
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
What instrument did Galileo develop which help find evidence to support the heliocentric theory?
Galileo developed the telescope, which allowed him to observe celestial bodies such as the moons of Jupiter and the phases of Venus. These observations provided evidence to support the heliocentric theory proposed by Copernicus.
How did Copernicus' heliocentric model help Galileo?
Copernicus' heliocentric model provided the framework for Galileo to further explore and confirm through his observations with the telescope. Galileo's discoveries, such as the moons of Jupiter and the phases of Venus, provided empirical evidence in support of the heliocentric model and contributed to its acceptance over the geocentric model.
How did Galileo's observations of Jupiter's moons support Copernicus theory?
The discovery did not support Copernicus's theory directly but it raised doubts about the ancient theory of Ptolemy that said that all objects in the sky are in orbit round the Earth. Galileo was an aggressive supporter of Copernicus's theory but eventually it was Kepler's theory that became accepted and is still used today. Both Copernicus and Kepler placed the Sun at the centre but Kepler's elliptical orbits are supported by the later theory of dynamics.
Did Galileo discover the Jupiter's four largest moons?
Yes, Galileo discovered Jupiter's four largest moons, now known as the Galilean moons, in 1610. They are Io, Europa, Ganymede, and Callisto. This discovery provided strong evidence to support the heliocentric model of the solar system proposed by Copernicus.
How did Galileo discovered that the earth is a sphere?
Galileo did not discover that the Earth is a sphere; this fact was already known by ancient Greek astronomers. However, Galileo's observations through his telescope, including the phases of Venus and the moons of Jupiter, provided further evidence to support the heliocentric model of the solar system proposed by Copernicus, which implied that Earth was also a sphere.
One way in which the contributions of Copernicus galileo and newton are similar?
Copernicus, Galileo, and Newton each fundamentally transformed our understanding of the universe through their revolutionary ideas about motion and celestial bodies. Copernicus proposed a heliocentric model, placing the Sun at the center, while Galileo's observations provided empirical support for this model and challenged traditional views of motion. Newton synthesized these ideas in his laws of motion and universal gravitation, explaining how celestial and terrestrial bodies interact. Together, their contributions laid the groundwork for modern astronomy and physics, emphasizing observation, experimentation, and mathematical description.
What is Galileo Galilei most famous four?
Galileo Galilei is most famous for his development and improvement of the telescope, his support of the heliocentric theory proposed by Copernicus, his discoveries in astronomy (such as the moons of Jupiter and sunspots), and his struggle with the Catholic Church over his beliefs.
Who proved Copernicus' heliocentric theory?
Galileo Galilei noted that; if our Earth and other planets went around our Sun, Venus would exhibit phases like our Moon; but if our Sun and other planets went around our Sun, it wouldn't. GG looked at Venus over the course of several weeks and noted unmistakeable phases. He thus concluded that the Copernican model was not just a useful model for calculation, but supported by observation.
Is galileo and newton related to Copernicus' theory?
Yes, Galileo and Newton built upon Copernicus' heliocentric theory of the universe by providing further evidence and support through their own observations and laws of motion. Galileo's telescopic observations confirmed Copernicus' model, while Newton's laws of motion and universal gravitation explained the physical principles behind the heliocentric system.
The scientist who first used a telescope to make discoveries that supported the heliocentric model was?
Galileo Galilei . He only helped support the theory through his observations , he didn't invent the model, Copernicus did.
Who developed ideas that contradicted Ptolemy's geocentric model of the universe?
Copernicus and Galileo were two major figures whose ideas contradicted Ptolemy's geocentric model. Copernicus proposed a heliocentric model with the Sun at the center of the solar system, while Galileo used observations through a telescope to support this view and challenge Ptolemaic beliefs.
Galileo's observation of the phases of Venus supported Ptolemy's epicycles?
Galileo's telescopic observations of the 4 large moons of Jupiter and the phases of Venus helped support the heliocentric model of the solar system developed by Copernicus. Copernicus predicted that all phases would be visible since the orbit of Venus around the Sun would cause its illuminated hemisphere to face the Earth when it was on the opposite side of the Sun and to face away from the Earth when it was on the Earth-side of the Sun. In contrast, the geocentric model of Ptolemy predicted that only crescent and new phases would be seen since Venus was thought to remain between the Sun and Earth during its orbit around the Earth. Galileo's observations of the phases of Venus proved that it orbited the Sun and lent support to (but did not prove) the heliocentric model.
