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  2. Galileo Galilei - Wikipedia

    en.wikipedia.org/wiki/Galileo_Galilei

    Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642), commonly referred to as Galileo Galilei (/ ˌ ɡ æ l ɪ ˈ l eɪ oʊ ˌ ɡ æ l ɪ ˈ l eɪ /, US also / ˌ ɡ æ l ɪ ˈ l iː oʊ-/; Italian: [ɡaliˈlɛːo ɡaliˈlɛːi]) or mononymously as Galileo, was an Italian [a] astronomer, physicist and engineer, sometimes described as a polymath.

  3. Sidereus Nuncius - Wikipedia

    en.wikipedia.org/wiki/Sidereus_Nuncius

    At the time of Sidereus Nuncius ' publication, Galileo was a mathematician at the University of Padua and had recently received a lifetime contract for his work in building more powerful telescopes. He desired to return to Florence, and in hopes of gaining patronage there, he dedicated Sidereus Nuncius to his former pupil, now the Grand Duke of ...

  4. Galileo affair - Wikipedia

    en.wikipedia.org/wiki/Galileo_affair

    Galileo began his telescopic observations in the later part of 1609, and by March 1610 was able to publish a small book, The Starry Messenger (Sidereus Nuncius), describing some of his discoveries: mountains on the Moon, lesser moons in orbit around Jupiter, and the resolution of what had been thought to be very cloudy masses in the sky (nebulae) into collections of stars too faint to see ...

  5. Copernican Revolution - Wikipedia

    en.wikipedia.org/wiki/Copernican_Revolution

    His improvements to the telescope, astronomical observations, and support for Copernicanism were all integral to the Copernican Revolution. Based on the designs of Hans Lippershey, Galileo designed his own telescope which, in the following year, he had improved to 30x magnification. [17]

  6. History of the telescope - Wikipedia

    en.wikipedia.org/wiki/History_of_the_telescope

    Notes on Hans Lippershey's unsuccessful telescope patent in 1608. The first record of a telescope comes from the Netherlands in 1608. It is in a patent filed by Middelburg spectacle-maker Hans Lippershey with the States General of the Netherlands on 2 October 1608 for his instrument "for seeing things far away as if they were nearby." [12] A few weeks later another Dutch instrument-maker ...

  7. Dialogue Concerning the Two Chief World Systems - Wikipedia

    en.wikipedia.org/wiki/Dialogue_Concerning_the...

    A reason for the absence of Tycho's system (in spite of many references to Tycho and his work in the book) may be sought in Galileo's theory of the tides, which provided the original title and organizing principle of the Dialogue. While the Copernican and Tychonic systems are equivalent geometrically, they are quite different dynamically.

  8. Galileo's escapement - Wikipedia

    en.wikipedia.org/wiki/Galileo's_escapement

    Galileo was one of the leading minds of the Scientific Revolution. [1] He was dubbed the founder of theoretical physics. [2] He is also credited with the invention of the celatone (a type of telescope) and the geometric and military compass. [3] Galileo's escapement was the earliest design of a pendulum clock.

  9. Historical models of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Historical_models_of_the...

    With the help of the telescope providing a closer look into the sky, Galileo Galilei proved the most part of the heliocentric model of the Solar System. Galileo observed the phases of Venus's appearance with the telescope and was able to confirm Kepler's first law of planetary motion and Copernicus's heliocentric model, of which Galileo was an ...