Through his life Galileo invented and developed many things such his renowned modification on the telescope when he created a lense which magnified the telescope views by over 20 times. Through his astronomical observations he discovered the four moons which circle Jupiter (Galilean moons) and the orbiting of Earth around the sun. 

In 1591 Galileo supposedly dropped two steel balls of the same material but different mass from the Leaning Tower of Pisa, Italy. The results of this experiment led to the law of constant acceleration.  Galileo was also famous for the pendulum clock and his help in the advancing of the scientific method. 

On January 8th 1642, Galileo Galilei left behind a fulfilled and perpetual legacy. Galileo’s experiments, findings and observations led to the analysis of classical mechanics which was used to build new ideas by men like Isaac Newton. His heliocentrism theories revolutionised astronomy and biology today.  

time,​ ​Galileo’s​ ​works​ ​were​ ​considered​ ​heresy​ ​by​ ​the​ ​Church.​ ​His​ ​strong​ ​belief​ ​in​ ​the copernican​ ​theory​ ​led​ ​to​ ​much​ ​disapproval​ ​by​ ​the​ ​church​ ​when​ ​he​ ​attempted​ ​to​ ​persuade the​ ​pope​ ​that​ ​the​ ​earth​ ​orbited​ ​the​ ​sun.​ ​

The​ ​Church​ ​believed​ ​that​ ​Galileo,​ ​​"dared​ ​to​ ​meddle with​ ​matters​ ​beyond​ ​his​ ​competence," (newworldencyclopedia)​ ​and​ ​that​ ​his​ ​findings​ ​were "abjured,​ ​cursed​ ​and​ ​detested,​"​ ​​(Nytimes).​ ​​​ ​​He​ ​went​ ​to​ ​many​ ​trials​ ​and​ ​was​ ​eventually​ ​put under​ ​house​ ​arrest​ ​for​ ​the​ ​rest​ ​of​ ​his​ ​life​ ​because​ ​of​ ​his​ ​beliefs. After​ ​Galileo’s​ ​death​ ​the perspectives​ ​on​ ​him​ ​changed​ ​and​ ​the​ ​ban​ ​on​ ​heliocentrism​ ​was​ ​lifted.​​ 
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Galileo​ ​Galilei inspired​ ​many​ ​famous​ ​scientists​ ​after​ ​his​ ​death​ ​such​ ​as​ ​Isaac​ ​Newton.​ ​​ ​ ​Today​ ​Galileo​ ​is​ ​known​ ​as​ ​a revolutionary​ ​scientist,​ ​Paul​ ​Cardinal​ ​Poupard​ ​said​ ​(Nytimes),​ ​​"We​ ​today​ ​know​ ​that​ ​

Galileo was​ ​right​ ​in​ ​adopting​ ​the​ ​Copernican​ ​astronomical​ ​theory." Galileo​ ​did​ ​not​ ​only see​ ​things​ ​through​ ​a​ ​scientist’s​ ​eye​ ​but​ ​an​ ​artist’s​ ​eye​ ​as​ ​well.​

Galileo​ ​a​ ​Professor​ ​of​ ​Mathematics​ ​at​ ​the​ ​University​ ​of​ ​Pisa,​ ​Italy.​ ​During​ ​this​ ​time​ ​he​ ​was tutoring​ ​Ferdinand's​ ​son,​ ​Cosimo​ ​II.​ ​When​ ​Ferdinand​ ​passed​ ​away,​ ​Galileo​ ​lost​ ​his 

professorship​ ​but​ ​did​ ​his​ ​best​ ​to​ ​stay​ ​close​ ​to​ ​the​ ​Medici​ ​Family​considering how ​he​ ​depended​ ​on the​ ​commission​ ​money​ ​in​ ​order​ ​to​ ​advance​ ​in​ ​his​ ​studies.​
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The​ ​commission​ ​money​ ​resulted in​ ​the​ ​invention​ ​of​ ​the​ ​telescope​ ​(1609)​ ​and​ ​by​ ​this​ ​time​ ​in​ ​his​ ​life​ ​he​ ​had​ ​already​ ​discovered the​ ​Moons​ ​of​ ​Jupiter​ ​of​ ​which​ ​he​ ​submissively​ ​called​ ​the​ ​‘Stars​ ​of​ ​Medici’.​ ​When​ ​Galileo shared​ ​his​ ​observations​ ​and​ ​inventions​ ​with​ ​Cosimo​ ​II,​ ​Cosimo​ ​was​ ​most​ ​impressed​ ​and 

restored​ ​Galileo’s​ ​Professorship.​ ​​

Galileo​ ​was​ ​also​ ​commissioned​ ​by​ ​other​ ​known Renaissance​ ​Figures​ ​including​ ​Cardinal​ ​Del​ ​Monte,​ ​Fra​ ​Paolo​ ​Sarpi,​ ​Prince​ ​Federico​ ​Cesi, 

Maffeo​ ​Barberini​ ​alongside​ ​the​ ​Medici​ ​Family​. 

This is an invention of the telescope by Galileo Galilei in 1609. A key component of the telescope is the objective lense, which is found on the ends of the two horizontal rods. The eye lense is on the opposite end of the hollow rods. The advanced (objective) lense can increase the magnification by 8 times which played a crucial part in the future of astronomy during the renaissance, since previous telescopes could only magnify the view by 3 times. 

Later that same year Galileo invented a telescope that could magnify objects by 20 times. This invention lead to many great discoveries such the four moons circling Jupiter called the Galilean moons, the orbiting of planets around the Sun, the rings of Saturn and many more that have shaped astronomy today.

This website explained Galileo’s history of Patronage and Commissions. It named many known renaissance figures, and included the history of the Medici Family.

This website explained the Copernican Theory and how Galileo’s findings were proved right. Talked about the telescope and what Galileo saw through it. 

It explained a little bit about the history of Patronage and linked extra sources.

Penguin​ ​Publisher. 

This book answered basic questions about Galileo’s personal life, and family. It includes birth-death dates, inventions, theories, family names, controversies/known arguments or feuds.

This book explains Galileo’s inventions, discoveries and struggles with the Church. 

This book includes information about Galileo’s discoveries and a little bit about the Church

This website includes a video explaining Galileo’s life and story.  It also includes a written version of the documentary.

This website contains important quotes about Galileo.

This page has an informational text which includes useful quotes.