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Hystorical approach to Solar System models

Welcome to Activity 1!

As we have already talked about, we know that today we consider the sun as the center of our solar system. We also know that there are some other planets rotating around it. But as you may also known, it has not always beeing like that. A lot of ancient societies have thought that, for example, the Earth was the center of the universe, and that the sun moved round the Earth.

Men from very different cultures have tried to explain what is what they have seen in the sky: stars, planets, comets,... Therefore they have proposed explanations to every single detail they have observed, and have tried to set models that described all of them together, but as you may expect, the theories have been very different. Obviously, in Europe we have done the same. We have always looked up to the sky and we have asked ourselves how was the composition of the universe. Since the Greek era, a lots of models of the universe have been proposed in order to explain the movements of planets, the sun and stars watched from the the Earth. 

Resultado de imagen de aristarchus  universe

Now we are going to study the most important ones!

First of all, you have to see the next video and answer the next questions:

 

 

1) Who was Aristotle? Was his model heliocentric or geocentric?

 

2) Who was Ptolomeus? Can you say if his model is heliocentric or geocentric? What is an epicicle?

3) Who was the first astronomer who has proposed an absolutely heliocentric model?

4) Which improvement was proposed by Kepler?

5) Which was the main input of Galileo in the new solar system model?

Short url:   https://multidict.net/cs/5472