A new era of science has beenstarted in the field of physics by the inventions of galileo.His inventions has been proved later though he had been proclaimed true. So we should be thankfull to him.   

Galelio Galeli

Galileo Galilei (15 February 1564 – 8 January 1642),commonly known as Galileo, was an Italian Physist, ,Mathemetician,Astronomer and Philosopher who played a major role in the Scientific revolution. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism. Galileo has been called the "Father of modern observational astronomy"