can anyone explain eudoxus concentic spheres theory?

Question

i know aristotle elaborated on eudoxus's explanations of outer space motion by increasing the number of spheres to 55. how did the idea begin? and how does the heliocentric spheres idea work?

Answer 1

It was Plato that first suggested that perhaps the planets apparently illogical "wanderings" in the night sky could be explained by "uniform circular motion" by imagining rotating spheres within spheres, but he did not elaborate exactly how. Eudoxus took the challenge, and devised a set of 27 rotating spheres, divided among the heavenly bodies in the following way:

Sun---3
Moon--3
Mecury--4
Venus--4
Mars--4
Jupiter--4
Saturn--4
Stars--1

Notice that this is a GEOCENTRIC model, not a heliocentric one. This idea took root because of the following 2 assumptions that were made about the motion of the heavenly bodies:

1) That the earth was at the center of the universe
2) That the only motion possible in the heavens was perfecly circular, since the circle is perfection, and the heavens are perfection.

Both assumptions, of course, were later proven wrong. The earth is not at the center of the universe, and Newton's laws showed that planets will orbit in elliptical paths.

Answer 2

perhaps i'm no longer the suitable person to respond to your question by using fact i'm a Christian who believes in micro evolution and not macro evolution. With the way you published your question, i'm confident you're a student on the theory of evolution so no remember what I write, you will discover something to %. on. So as a replace, if i will post a query back, could you enlighten a Christian like me who i in my view have not got each and all of the solutions for you, what's the evolution theory and a million) how do you account for each and all of the lacking hyperlinks between many species 2) what's the precise threat that it takes for random concerns interior the universe to style amino acids to proteins to cells to organs to life (sorry if that seems short, i comprehend there are various greater intermediate steps), and how has that threat been examined 3) how do you account for the evolution from an difficulty-free (eg:) organ to a complicated one on a similar time as without even one area the organ render ineffective (working example: there is not any linear relationship between a monotone eye and a chromotone eye)? yet finally, i'm basically thinking, what are the relevance to a Christian being knowledgeable or no longer makes a distinction to something approximately Christianity? An toddler would desire to have not have been given any theory what 2 + 2 equals; yet that doesn't recommend the respond is something yet 4.