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∙ 16y agoA Ptolemaic view of the Universe has the Earth at it's centre.
The Copernican centres on the sun. Both however have been found to be incorrect.
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∙ 16y agoThe difference between a shogun and a samurai is like the difference between a king and a knight.
Before Rome, the two regions that had control of Judea were the Seleucid Empire, which was based in present-day Syria, and the Ptolemaic Kingdom, which was based in present-day Egypt.
there is no difference between this two...
A question about "the difference between" requires two objects!
Explain the difference between the vassals and the serfs
The main difference between the Ptolemaic system and the Copernican system is their approach to explaining the motion of the planets. The Ptolemaic system placed Earth at the center of the universe with planets moving in complex epicycles, while the Copernican system proposed that the Sun was at the center, with planets including Earth orbiting around it.
The Ptolemaic theory and the Copernican Theory.
there is no difference. they are both 42.
The difference between Ptolemy's and Copernicus's model was that, Ptolemy's model had the Earth in the middle of the Solar System, with all the other planets (including the Sun and the moons) revolving around it. In Copernicus's model, he had the Sun in the center of the Solar System.
The dialog concerning the two chief world systems, Ptolemaic and Copernican, addresses the debate over the structure of the universe and the position of Earth within it. Galileo's support for the Copernican system, which placed the Sun at the center of the universe with Earth and other planets orbiting around it, challenged the longstanding belief in the geocentric model proposed by Ptolemy. This dialog reflects the clash between traditional views and new scientific discoveries during the Scientific Revolution.
The heliocentric 'theory' is not really a theory at all, more an assertion that the Sun is at the centre of the solar system. Copernicus's theory assumes that the Sun is at the centre and provides a model of the planets' orbits that uses circles and epicycles to explain the observed orbits. He said it was simpler than the old "geocentric" (Earth centred) Ptolemaic system, but it was not really, it actually had more epicycles. Note: Perhaps the questioner got mixed up. The Copernican theory IS a heliocentric theory. Perhaps the question is about the geocentric theory and the Copernican theory. Anyway, Kepler simplified the heliocentric theory and now we know that his model is correct.
Without the difference between scalars and vectors the Universe doesn't work !
A galaxy contains billions of stars. A universe contains billions of galaxies.
The Universe is much larger, and contains many solar systems.
They thought it was a explosion in the universe so they sent astronauts into space.
Geocentric is that the earth is the center of the universe and heliocentric is the sun is the center of the universe. can it be nothing.
Amongst many other things, Galileo observed Venus in all four of its phases, crescent, waxing, waning, and full, as well as gibbous transitions between those phases. This proved the Copernican heliocentric viewpoint, making the Ptolemaic model untenable.