The Venetian Senate, perhaps realising that the rights to manufacture telescopes that Galileo had given them were worthless, froze his salary. However he had succeeded in impressing Cosimo and, in June 1610, only a month after his famous little book was published, Galileo resigned his post at Padua and became Chief Mathematician at the University of Pisa (without any teaching duties) and 'Mathematician and Philosopher' to the Grand Duke of Tuscany.
Ang Benesiya Senado, marahil realising na ang mga karapatan sa paggawa teleskopyo na Galileo ay ibinigay ang mga ito ay walang kabuluhan, froze kanyang suweldo. Gayunman siya ay Tagumpay sa impressing Cosimo at, sa Hunyo 1610, isang buwan lamang pagkatapos ng kanyang tanyag na maliit na libro ay nai-publish, Galileo nakatalaga sa kanyang post at Padua at naging Chief Mesopotamya sa University of Pisa (nang walang anumang pagtuturo tungkulin) at 'Mesopotamya at pilosopo 'Sa Grand Duke of Tuscany.