![]() ![]() This went against the views of Aristotle, an ancient philosopher whose theory was different. Galileo found that objects fall to the ground at the same rate, unless things like wind resistance change the rate. Even though their weights were not the same, they hit the ground at the same time. However, he is often remembered now for things that either did not happen, or failed.Ī legend says that he climbed the Leaning Tower of Pisa, and dropped cannonballs of different weights, to see which would strike the ground first. He studied natural forces, and was one of the most important discoverers of the part of physics that is now called kinematics, including the discovery of the kinematic principle of relativity. Galileo worked more at physics than at astronomy. This helped people to know that the Sun is at the centre of the Solar System, as Nicolaus Copernicus had said. He saw that the planet Venus has light and dark phases just like the Moon. He discovered sunspots, which are dark areas of the Sun. Those moons are now called the Galilean moons. He discovered that the Milky Way is made of many stars. This is not true, but he was the first person to publish his observations of astronomical objects through a telescope. Some people believe that Galileo was the first person to build a telescope. Vincenzo was later legitimised as the legal heir of Galileo and married Sestilia Bocchineri. Livia took the name Sister Arcangela and was ill for most of her life. ![]() She died on 2 April 1634, and is buried with Galileo at the Basilica of Santa Croce, Florence. Virginia took the name Maria Celeste upon entering the convent. Both girls were accepted by the convent of San Matteo in Arcetri and remained nuns for the rest of their lives. Their only worthy alternative was the religious life. Because of their illegitimate birth, their father considered the girls unmarriageable. They had two daughters, Virginia in 1600 and Livia in 1601, and one son, Vincenzo, in 1606. She is buried with him in his tomb in the Basilica of Santa Croce, Florence.Īlthough he was a devoted Roman Catholic, Galileo fathered three children with his mistress Marina Gamba. Galileo's beloved elder daughter, Virginia ( Sister Maria Celeste), was particularly devoted to her father. He then was educated in the Camaldolese Monastery at Vallombrosa, 35 km southeast of Florence. When Galileo Galilei was eight, his family moved to Florence, but he was left with Jacopo Borghini for two years. Galileo Bonaiuti was buried in the same church, the Basilica of Santa Croce in Florence, where about 200 years later his more famous descendant Galileo Galilei was also buried. At that time in the late 14th century, the family's surname shifted from Bonaiuti (or Buonaiuti) to Galilei. ![]() Galileo was named after an ancestor, Galileo Bonaiuti, a physician, university teacher and politician who lived in Florence from 1370 to 1450. This financial burden gave additional intensive to Galileo for developing inventions that could bring him additional income. Michelangelo quickly spent his part of the father's inheritance and often had to borrow money from Galileo. The youngest, Michelangelo (or Michelagnolo), also became a noted lutenist and composer although he contributed to financial burdens during Galileo's young adulthood. Three of Galileo's five siblings survived infancy. Galileo became an accomplished lutenist himself, and learned early from his father more than just music - healthy scepticism for established authority, mathematics, and the value of well-measured or quantified experimentation. Galileo was born in Pisa (then part of the Duchy of Florence), Italy, in 1564, the first of six children of Vincenzo Galilei, a famous lutenist, composer, and music theorist, and Giulia Ammannati.
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