When the astronomical research of his obstacles. He turned to research mathematics and science instead. 
Galileo has many fabricated scientific instruments up pieces of water clock, thermometer and a ruler. (Thermometer) 
And in the year 1636, Galileo has one or more write called Nuove Scienze Della Dialoghi but published in years. 
By 1638, Xavier (Elzavirs) safe city Valley (Leyden) this book is a book that contains the Department of mechanics. 
After this book is published to more popular his Astronomy Book. All is not against religion, from machine.
As well.