Galileo Galilei( 15 February 1564 - 8 January 1642 )
Galileo Galilei was an Italian polymath: astronomer, physicist, engineer, philosopher, and mathematician, he played a major role in the scientific revolution of the seventeenth century.
He has been called the "father of observational astronomy", the "father of modern physics", the "father of scientific method", and the "father of science".
His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter , and the observation and analysis of sunspots. Galileo also worked in applied science and technology, inventing an improved military compass and other instruments.
Galileo's championing of heliocentrism and Copernicanism was controversial during his lifetime, when most subscribed to either geoc...