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  2. Letters on Sunspots - Wikipedia

    en.wikipedia.org/wiki/Letters_on_Sunspots

    Galileo sketched his sunspot observations. This is one of his earliest sketches from Le Opere di Galileo Galilei. Galileo and Prince Cesi selected Matthaeus Greuter to create the sunspot illustrations. Originally from Strasbourg and a convert from Protestantism, Greuter moved to Rome and set up as a printer specialising in work for the Jesuit ...

  3. Sidereus Nuncius - Wikipedia

    en.wikipedia.org/wiki/Sidereus_Nuncius

    One of Galileo's first telescopes had 8x to 10x linear magnification and was made out of lenses that he had ground himself. [8] This was increased to 20x linear magnification in the improved telescope he used to make the observations in Sidereus Nuncius .

  4. 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.

  5. Celebrating Valentine's Day? 6 things about love and sex ...

    www.aol.com/celebrating-valentines-day-6-things...

    The same goes for how we make sense of our partner’s behavior. She said people in the happiest relationships tend to maintain positive illusions of their partners, like believing they’re ...

  6. Letter to the Grand Duchess Christina - Wikipedia

    en.wikipedia.org/wiki/Letter_to_the_Grand...

    Galileo establishes two main premises before addressing his conclusion. God has created Scripture and nature. They cannot contradict each other. Nature is independent of accommodation, but Scripture is produced to accommodate. [2] Galileo argued that the Copernican theory was not just a mathematical calculating tool, but a physical reality.

  7. Phases of Venus - Wikipedia

    en.wikipedia.org/wiki/Phases_of_Venus

    The first observations of the full planetary phases of Venus were by Galileo at the end of 1610 (though not published until 1613 in the Letters on Sunspots).Using a telescope, Galileo was able to observe Venus going through a full set of phases, something prohibited by the Ptolemaic system that assumed Venus to be a perfect celestial body.

  8. And yet it moves - Wikipedia

    en.wikipedia.org/wiki/And_yet_it_moves

    Attributed to Galileo Galilei " And yet it moves " or " Although it does move " ( Italian : E pur si muove or Eppur si muove [epˈpur si ˈmwɔːve] ) is a phrase attributed to the Italian mathematician, physicist, and philosopher Galileo Galilei (1564–1642) in 1633 after being forced to recant his claims that the Earth moves around the Sun ...

  9. The Assayer - Wikipedia

    en.wikipedia.org/wiki/The_Assayer

    The Assayer (Italian: Il saggiatore) is a book by Galileo Galilei, published in Rome in October 1623. It is generally considered to be one of the pioneering works of the scientific method, first broaching the idea that the book of nature is to be read with mathematical tools rather than those of scholastic philosophy, as generally held at the time.