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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.
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 ...
1608 – Hans Lippershey tries to patent an optical refracting telescope, the first recorded functional telescope; 1609 – Galileo Galilei builds his first optical refracting telescope; 1616 – Niccolò Zucchi experiments with a reflecting telescope; 1633 – Construction of Leiden University Observatory
Galileo Galilei was among the first to use a telescope to observe the sky, and after constructing a 20x refractor telescope. [83] He discovered the four largest moons of Jupiter in 1610, which are now collectively known as the Galilean moons, in his honor. [84] This discovery was the first known observation of satellites orbiting another planet ...
A claim will be made 37 years later by another Dutch spectacle-maker that his father, Zacharias Janssen, invented the telescope. [17] A replica of Galileo's telescope. 1609 — Galileo Galilei makes his own improved version of Lippershey's telescope, calling it a "perspicillum".
The Astronomers Monument pays homage to six of the greatest astronomers of all time: Hipparchus (fl. 150 BC), Nicolaus Copernicus (1473–1543), Galileo Galilei (1564–1642), Johannes Kepler (1571–1630), Isaac Newton (1642–1727), and William Herschel (1738–1822).
1632 – Galileo Galilei is sometimes credited with the discovery of the lunar libration in latitude, [86] although Thomas Harriot or William Gilbert might have done so before. [87] 1639 – Jeremiah Horrocks and his friend and correspondent William Crabtree are the first astronomers known to observe and record a transit of Venus. [88]
The Italian mathematician, astronomer, and physicist Galileo Galilei (1564–1642) was a supporter of Copernicanism who made numerous astronomical discoveries, carried out empirical experiments and improved the telescope. As a mathematician, Galileo's role in the university culture of his era was subordinated to the three major topics of study ...