Concept
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Physics and Mathematics
Portrait of Galileo Galilei by Giusto Sustermans, 1636.
Galileo Galilei (1564–1642) improved the telescope, with which he made several important astronomical discoveries, including the four largest moons of Jupiter, the phases of Venus, and the rings of Saturn, and made detailed observations of sunspots. He developed the laws for falling bodies based on pioneering quantitative experiments which he analyzed mathematically.
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"Justus Sustermans - Portrait of Galileo Galilei, 1636."
http://en.wikipedia.org/wiki/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg
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