Galileo Galilei was born on 15th February 1564 in Pisa, Italy and died on 8th January 1642. His family moved to Florence around the 1570’s, where he lived much of his childhood. In his teens, Galileo attended the monastery school of Vallombrosa; it was located near Florence. Later in 1581, he enlisted at the University of Pisa, in which he studied medicine. However, as he began to study further into medicine, he was drawn to mathematics and unequivocally took mathematics and philosophy as his choice of profession in opposition to the objection of his father. In 1585, he decided to leave the university without having acquired a degree; for a handful of years he gave private mathematics lessons. Later in 1588, he tried to seek for the chair of mathematics at the university of Bologna but had failed and was unsuccessful. However, his reputation started to grow and later that year he was posed to convey two lectures which was held at Florentine Academy. Galileo had also acquired a theory based on the centers of gravity, which brought him greater recognition amongst mathematicians. As result, he derived the chair of mathematics in 1589 at the University of Pisa. He later on developed the utilization of telescopes for perceiving the night sky. Majority of his discoveries were based on astronomy and space.
At this point in his life, his career took a spin. In 1609 he gathered the information that the Netherlands had an instrument that could reach distanced spaces and made them as though they were near. After a great amount of trial and error, he figured out the how the invention worked and how to create it. He fabricated his own three-powered spyglass, which were made from lenses produced in sale’s markets. He also gained the knowledge of pulverization and refixation. The telescope he created made it possible for him to see with a magnification of eight to nine times its original form; this made it possible for him to see that Jupiter had satellites and that there were mountains on the moon. In August the same year, he dispensed the eight powered instrument to the Venetian Senate. In admiration of his work, his was awarded with life tenure and a double in his salary.
During fall of the same year, he began perceiving with instruments that magnified up to twenty times. In December, he depicted a picture of the moon’s phrases to prove that the moon’s surface is not soft as it was thought to be, but rather rough and bumpy. He also discovered that the moon had mountains, in similarity to Earth.
Further on in 1610 when he pointed his telescope at Jupiter, he noticed a remarkable discovery. He discerned that there were four moons revolving around Jupiter. With the advancement that Galileo had made to his telescope, it was possible for him to see Jupiter. The name of the moons are currently called, Europa, lo, Ganymede and Calisto.
When he was in Florence, he moved his target to Venus. He discovered that Venus had the same phases as the moon and concluded that it revolved and orbited around the sun. Although his discoveries didn’t prove that Earth was a planet he eroded Aristotelian cosmology: he proved that there had to be more than one center of motion in the universe.
In the same year (1610), Galileo was intrigued with the findings and discoveries he found in the solar system and wanted to learn more. When he decided to take a look at Saturn, his inaccuracy and crudeness of his telescope, he couldn’t decide what the figure that circled Saturn was. He erroneously estimated that they were two moons on the two sides of Saturn. Two years later, when he decided to take a look at Saturn again, the moons had disappeared. This was because he was observing the rings edge-on, which meant they weren’t visible. He came back another two years, and viewed Saturn again and found that the “moons” had returned.
Curious about the sun, in the same year 1610 Galileo had found out that the sun had these dark spots which are now know as sunspots. Not knowing that the sun could damage his eyesight and make him blind, he pointed his telescope to the sun and found these circle which appeared to be in a very dark color. His other discovery of the sun proved that our solar system revolved around the sun and not Earth, as it was thought to be.
In 1613, one of Galileo’s letter’s had sent trouble to him. When he sent a letter to his student in Pisa, many forged letters were sent about the Copernican theory. These letters were sent by his enemies to Rome and later had to recoup the letter to send an accurate copy.
Galileo has the way we work today economically and educationally. He had built a better understanding of our solar for us, as well as made it possible to know about the sun. This has built a better education, because we have more knowledge of what out there based his findings and theories. This has changed us economically, because of all the rockets and satellites we have sent up into space (the money which goes into making this is estimated to $30-60 million). This has also helped humans reach to distant places such the moon.
In conclusion, many people still use telescopes to gain more knowledge about the world we live, and his contributions and information he had discovered Definity had a huge impact on the knowledge we know and learnt. Without his spyglass telescope, we may have had no idea of what our solar system was like, what planets were, and about our sun.