Grassi argued from the apparent absence of observable parallax that comets move beyond the Moon. Galileo mistakenly believed that comets are an optical illusion. Mathematics and philosophy in The Assayer[ edit ] In Galileo may have been silenced on Copernicanism. The election of Barberini seemed to assure Galileo of support at the highest level in the Church. A visit to Rome confirmed this. The Assayer is a milestone in the history of science: here Galileo describes the scientific method , which was quite a revolution at the time.
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Why did Galileo write "The Assayer" and what it is about? Why did Galileo chose this title, and what he meant to convey by doing so? What does Galileo means when he says, "nature takes no delight in poetry. What IS science like, according to Galileo? What was the importance of mathematics to Galileo for his understanding of science and of nature. He speaks at one point of language--not the language of poets, but the language of mathematics.
How does this relate to his other works in Discoveries and Opinions of Galileo, and in particular, his attempts to defend himself from his critics? Is Galileo able to do so effectively in "The Assayer"? In fact, it was written as response of a controversy about the nature of comets in In particular, it was a response to the comments made by Orazio Grassi.
Il saggiatore The Assayer was published in , and the title means the "examiner" or "the analyzer", referring to the importance of observing nature and rigorously examine the external parameters in which it is based, setting the foundations for the scientific method. In this book, he discussed