1564-1642 Publications The Little Balance (1586) On Motion (1590)[136] Mechanics (ca. 1600) The Starry Messenger (1610; in Latin, Sidereus Nuncius) Discourse on Floating Bodies (1612) Letters on Sunspots (1613) Letter to the Grand Duchess Christina (1615; published in 1636) Discourse on the Tides (1616; in Italian, Discorso del flusso e reflusso del mare) Discourse on the Comets (1619; in Italian, Discorso Delle Comete) The Assayer (1623; in Italian, Il Saggiatore) Dialogue Concerning the Two Chief World Systems (1632; in Italian Dialogo dei due massimi sistemi del mondo) Discourses and Mathematical Demonstrations Relating to Two New Sciences (1638; in Italian, Discorsi e Dimostrazioni Matematiche, intorno a due nuove scienze) Discoveries & Inventions the law of the pendulum: This later was used to regulate clocks Telescope: This took many years to create but with this invention I was able to discover what you all know to be called sunspots. These sunspots showed that the Sun is on an axis and with that discovery I was able to discover that the Earth is on an axis as well. This invention also made the discovery of Jupiter's moons, that Venus went through phases Discoveries & Inventions (Continued) Law of Inertia: Most objects that are in a state of motion do Not stay in that state of motion. Along with the telescope I invented the thermometer and magnets Tower Of Pisa I proved Aristotle's law of nature, that heavier objects fall faster than lighter objects to be false. Bibliography http://inventors.about.com/od/gstartinventors/a/Galileo_Galilei.htm Galileo Galilei Biography of Galileo Galilei By Mary Bellis, http://csep10.phys.utk.edu/astr161/lect/history/galileo.htmlGalileo: the Telescope & the Laws of Dynamics http://plato.stanford.edu/entries/galileo/Galileo Galilei First published Fri Mar 4, 2005; substantive revision Thu May 21, 2009 http://en.wikipedia.org/wiki/Galileo_Galilei