Galileo
Newton's greatest achievements are the Law of Gravity, his laws of Motion, his development of Calculus, the Reflecting Telescope, his Theory of Light and his use of data, experiments and mathematical models.
Geocentric models had the earth as the center of the universe with the sun and all the planets orbiting it. Heliocentric models (the current accepted ones) have the sun as the center, with the earth and planets orbiting it.
The planets Uranus and Neptune were discovered only in modern times after the heliocentric model had been generally accepted.
The major difference between the geocentric and heliocentric models lies in the center of the solar system: the geocentric model places the Earth at the center, with the Sun and planets orbiting around it, while the heliocentric model positions the Sun at the center, with the Earth and other planets orbiting around it. The heliocentric model, proposed by Copernicus, is supported by observational evidence and eventually led to a better understanding of planetary motions, while the geocentric model was based on ancient beliefs and lacked empirical support.
This shift in understanding was largely due to the work of astronomers like Nicolaus Copernicus and Johannes Kepler, who proposed heliocentric models of the universe in the 16th and 17th centuries. Their theories were later confirmed by Galileo Galilei's observations using a telescope, which provided empirical evidence supporting the heliocentric model and eventually led to the acceptance of the idea that the planets orbit the sun.
New scientific models are developed in order to reflect the most recent discoveries.
He created the 'Ptolemaic System' which was a widely accepted geocentric model until the introduction of the more simple heliocentric models. He came up with the value of Pi (3.14166). He wrote several Astrology books including the 'Almagest' which is the only surviving comprehensive ancient treatise on astronomy.
Both geocentric and heliocentric models attempt to explain the movement of celestial bodies in the sky, specifically the sun, moon, and planets. Both models involve orbits, with geocentric placing Earth at the center and heliocentric placing the sun at the center. Additionally, both models seek to account for the retrograde motion of planets as seen from Earth.
in a heliocentric system earth and the other planets revolving planet's a geocentric system ,earth is at the center of the revolving planets
Nicolaus Copernicus.
It was the model devised by Copernicus.
Well if we didn't have any models and so we would not have any models