Galileo was born in February 15, 1564, Pisa Italy and died in January 8, 1642, Arcetri, near Florence. He was an Italian natural philosopher, astronomer, and mathematician who made fundamental contributions to the sciences of motion, astronomy, and strength of materials and to the development of the scientific method. His formulation of (circular) inertia, the law of falling bodies, and parabolic trajectories marked the beginning of a fundamental change in the study of motion. His insistence that the book of nature was written in the language of mathematics changed natural philosophy from a verbal, qualitative account to a mathematical one in which experimentation became a recognized method for discovering the facts of nature. Finally, his discoveries with the telescope revolutionized astronomy and paved the way for the acceptance of the Copernican heliocentric system, but his advocacy of that system eventually resulted in an Inquisition process against him.
Galileo made several historically important inventions. Firstly, he invented the telescope (Galilean telescope), which is an instrument for viewing distant objects. It was named after the great Italian scientist Galileo Galilei, who first constructed one in 1609. With it, he discovered Jupiter’s four largest satellites, spots on the Sun, phases of Venus, and hills and valleys on the Moon. It consists of a convergent lens as objective (the lens that forms the image); and its eyepiece, placed in front of the focus, is a divergent lens. An upright image is produced. This simple refracting telescope is still used in modern opera glasses, which are low-powered binoculars. He also invented the sector, which combined the uses of both types of instruments (compasses and dividers), designing a proportional compass or sector that had many useful scales engraved on its legs and could be used for a variety of purposes, including gunnery. Galileo helped future astronomers to make a good start and provide crucial equipment for them.
In my opinion, I like Galileo’s telescope for many important reasons. Firstly, the telescope has many useful things to astronomy. For example, they could be used to observe or magnify things in outer space that we can’t see with our naked eye. Galileo’s telescope can magnify at least forty times larger and that helped him prove that the moon orbits the earth. Secondly, this invention also made a good start for the present telescopes. Without Galileo’s amazing invention, our telescopes might be not as technological as todays. With his start we later invented radio dish telescopes (like FAST), telescopes that orbits the earth (Hubble and James Webb, x-ray telescope, and other massive telescopes. They are all used to observe space but discover different things. Radio telescopes help receive information. Orbiting telescopes can look extremely far away to discover unknown and unique things. X-ray telescopes can see things which you don’t know the exact place (black holes). Finally, massive telescopes can observe a specific and faraway planet. I like telescopes because there are many types and it was a massive improvement in technology.
If I can invent whatever I want, I want to invent an electronic schoolbag. The bag will have many uses and things. Firstly, it can tidy up your things like books, snacks, and water bottles automatically. It organizes the different types of books into the same folder. It refills the water bottle and puts it into a waterproof part. It can also refill your snack box and lunch box if needed. Secondly, it has many other useful things. It has a clock where I can see the time when I have it. It has calculator to help me in daily life. It also has other crucial apps like Alipay and a mini boardgame compendium which I can play when I am bored. My schoolbag will have many convenient resources that will make my life easier and more interesting.
In conclusion, Galileo is an Italian astronomer or inventor that has made a huge improvement in astronomy. He invented the telescope using the idea of a magnifier. His telescope can magnify forty to sixty times larger than the naked eye. He used that to observe stars and planets including Jupiter and his four moons. This proved that the moon orbits the Earth and made a good opening to present’s telescopes. Galileo made many inventions including the telescope and the sector. I am interested in his telescopes as there are many types of them. It inspired me to want to invent a automatic electric schoolbag.
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