# My First Post in Physics Category

Definitely, Dialogo sopra i due massimi sistemi del mondo will be my first post in my Physics category. In respect to Galileo Galilei.

Here is an English version of this booklet: Dialogue Concerning the Two Chief World Systems

There is a paragraphy in the Second Day:

Is it possible for you to doubt that if Anistotle should see the new discoveries in the sky he would change his opinions and correct his books and embrace the most sensible doctrines, casting away from himself those people so weak-minded as to be induced to go on abjectly maintaining everything he had ever said?
Why, if Aristotle had been such a man as they imagine, he would have been a man of intractable mind, of obstinate spirit, and barbarous soul; a man of tyrannical will who, regarding all others as silly sheep, wished to have his decrees preferred over the senses, experience, and nature itself.
It is the followers of Aristotle who have crowned him with authority, not he who has usurped or appropriated it to himself.

As changhai translated it as:

It’s cool that I have the opportunity to mention these words in the first post of my Physics category.

The Gravity Formula $g = G\frac{M}{r^2}$

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