Galileo and his legacy left behind!
Galileo Galilei is known as the “father of modern science” with great achievements including improvements to the telescope and subsequent astronomical observations, and the support of Copernicus’ theory.
So you know, apart from the telescope, Did he also has any legacies for humans up to the present time? Let’s find out through the following article!
Galilei – A young multi-talented boy
In order to quickly want his son to be successful since Galilei was a child, Vesenxao Galilei started to teach his child to learn. When Galileo could speak, he taught him Latin and Greek. Little Galileo is very hard-working, progresses very quickly, is very well-absorbed in what his father taught him. And his father also taught him a lot of other knowledge except Mathematics.
When he was a child, Galileo’s hobbies were playing the piano, drawing, doing manual labor, and when he was free he often made toys for his children. He has a very strong desire for knowledge. But his father turned him to another way: to become a physician.
In 1572, Galilei was 8 years old and happily obeyed her father to go to school. And when he studied, he did not focus on the teacher’s lecture but thought about the moon, the sun and the stars blankly … However, Galilei was still the best student in the school in all subjects.
In 1574, his family moved to Florence. Here, he went on to attend the Vallambrosa Seminary of Santa Maria near Florence. Galilei’s knowledge to learn was expanded and deepened after the Renaissance. His father who brought him to school was also very worried if he could follow, and what surprised his father and everyone was that he was passionate about studying and doing well in school. He liked Theology so much that he wanted to choose the job of Theology as a career in his life.
Galilei’s youth was a complete and comprehensive study that made many people admire and hope. He has been very diligent in his research and has an intelligent and brave quality, which foretells that he will become a great talent in the future.
Youth and early studies of motion
In 1581, Galilei enrolled in medicine at the University of Pisa. During his first year in college, observing a hanging chandelier at the Pisa Cathedral, he realized that the lamp always took the same time to oscillate no matter how wide or narrow the range. Come on.
This was later verified by him experimentally, then proposing to use the pendulum principle in clock regulation.
Then, when he was studying geometry, he began to fall in love with mathematics. In 1585, because he had no money, he had to quit school and returned to Florence to teach. Here, in 1586, he published a thesis on hydrostatic scales, which made him famous throughout Italy. In 1589, thanks to a discussion of the focus of solid objects, he was offered a position in mathematics at the University of Pisa.
From there, he began to work on the theory of motion, rejecting Aristotle’s conception of falling motion for the first time. In 1592, due to financial difficulties, he transferred to teaching mathematics at the University of Padua; Here, over the course of 18 years, he made many important scientific discoveries.
Continuing his research on motion, around 1604, he theoretically demonstrated that falling objects obey a later law called steadily accelerating motion. He also came up with the law of a parabolic falling motion. The story of his experiment proving that objects fall equally at the Pisa leaning tower is not proven to have real evidence.
The huge legacy left to modern science
Galileo’s direct contributions to astronomy were the discoveries made with his telescope. The boundaries of the visible universe he had expanded greatly. In the two years after the discovery of the moons of Jupiter, he made precise tables of their rotation.
His observations of the sun’s dark spots have been highly accurate and since then he has drawn very important conclusions: the rotation of the Sun and the rotation of the Earth.
It is strange that Galileo did not know the laws of planetary motion of Kepler, his contemporaries. He believed that the planetary orbits must be circular in order to maintain a perfect order of the universe. But he also had some righteous beliefs that he would discover planets outside of Saturn, light with a finite, but very great, speed. He also talked about making microscopes from 1610 but it was not until 1624 that he saw a complex microscope in Rome that he made one.
Galileo made contributions to what is now called technology, distinguished it from pure physics, and proposed many other things. This is not the same as Aristotle’s distinction, which sees all of Galileo’s physics as techne or useful knowledge, as opposed to the episteme, or the philosophical consideration of the causes of things. In the period 1595–1598, Galileo invented and refined a Geographic and Military Compass suitable for use by gunners and cartographers.
This is an improvement on previously designed equipment by Niccolò Tartaglia and Guidobaldo del Monte. For the gunners, in addition to a new and safer way to increase gun accuracy, it also provided a quick way to calculate the amount of gunpowder for shells of different sizes and materials. As a geographic tool, it allows you to build any regular polygon, calculate the area of any part of a polygon or circle, and perform many other calculations.
Galileo’s most important contribution is clearly that of establishing mechanics as a science. Several discoveries were made about force before Galileo, but it was he who first clarified the idea that force is a mechanical agent. Although he did not state the dependence of motion and force into laws, his works on dynamics always showed these laws. He was the man who paved the way for Isaac Newton to later complete the mechanics, rightly known as Galileo-Newtonian mechanics.
While alive, Galileo Galilei once said: “Truth always contains a force; the more you want to attack it, the more solid it is, and also you have proved it “. Up to now, his system of scientific theories is still a sure fulcrum for modern science to develop. On Galilei’s grave, people respectfully inscribed on the words: “He lost his sight because in nature there is nothing he has not seen.”