This vlog style film explores the work of Galileo Galilei around forces, and how they work. Galileo Galilei (15 February 1564 – 8 January 1642) was an Italian polymath. The Ancient Greek philosopher, Aristotle, taught that heavier objects fall faster than lighter ones, a belief still held in Galileo's lifetime. In his book "Sidereus Nuncius" ("Starry Messenger"), published in 1610, Galileo wrote: "On the 7th day of January in the present year, 1610, in the first hour of the following night, when I was viewing the constellations of the heavens through a telescope, the planet Jupiter presented itself to my view, and as I had prepared for myself a very excellent instrument, I noticed a circumstance which I had never been able to notice before, namely that three little stars, small but very bright, were near the planet; and although I believed them to belong to a number of the fixed stars, yet they made me somewhat wonder, because they seemed to be arranged exactly in a straight line, parallel to the ecliptic, and to be brighter than the rest of the stars, equal to them in magnitude . 1592 – Galileo begins his 18-year tenure as a professor of mathematics at the University of Padua. Thank you for signing up to Space. A year before his death he came up with a pendulum design used for keeping time. When NASA sent a mission to Jupiter in the 1990s, it was called Galileo in honor of the famed astronomer. In 1581, Galileo was sent to the University of Pisa to study medicine. In 1602, he determined that the time it takes a pendulum to swing back and forth does not depend on the arc of the swing. His telescope allowed him to see with a magnification of eight or nine times. Please deactivate your ad blocker in order to see our subscription offer. Experimenting with balls of different sizes and weights, he rolled them down ramps with various inclinations. Galileo's Biography: Early Life Galileo and the Pendulum Galileo On Motion Galileo's Mechanical Devices Galileo's Family Life Galileo's Telescope Galileo and the Inquisition Text-Only Version: Text, design, and layout by Megan Wilde for the Electronic Text Center. "I have never met a man so ignorant that I couldn't learn something from him. Visit our corporate site. A list of famous people throughout history. 1564 – Galileo Galilei is born in Pisa. Galileo Galilei is credited with discovering the first four moons of Jupiter. They include famous spiritual figures, politicians and writers who have helped to shape human history. Galileo was arrogant, certainly, but by the end of 1610 he seemed to have reason to be. Vincenzo decided that his son should become a doctor. . There was a problem. Fine Art Images/Heritage Images/Getty Images. Of all of his telescope discoveries, he is perhaps most known for his discovery of the four most massive moons of Jupiter, now known as the Galilean moons: Io, Ganymede, Europa and Callisto. Stanford University Solar Center: Galileo’s Discoveries, 'For All Mankind' sneak peek: Astronaut handles zipper malfunction in 'Rules of Engagement'. In later years, the Catholic Church changed their views on Galileo and stated that they regretted how he was treated. These famous historical figures are chosen from a range of different cultures and countries. His father was a well-known composer, who played the lute, a stringed instrument. In his life, accurate timekeeping was virtually nonexistent. Back to Biographies. (Hans Lippershey applied for the first patent in 1608, but others may have beaten him to the actual invention.) Galileo observed, however, that the steady motion of a pendulum could improve this. ", "I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use. It was called. Several men laid claim to inventing the telescope, but the credit usually goes to Hans Lippershey, a Dutch lensmaker, in 1608. It was later discovered that Saturn had rings. In comparison, spyglasses of the day only provided a magnification of three. Galileo's telescope, 1610. Marie Curie Biography. When on January 8th, led by some fatality, I turned again to look at the same part of the heavens, I found a very different state of things, for there were three little stars all west of Jupiter, and nearer together than on the previous night. Galileo published the first scientific paper based on observations made through a telescope in 1610. ', and 'You cannot teach a man anything, you can only help him find it within himself.' He was found guilty of heresy, and was placed under house arrest for the remaining nine years of his life. Galileo is often incorrectly credited with the creation of a telescope. A new … […] "We cannot teach people anything; we can only..." - Galileo Galilei quotes from BrainyQuote.com 1586 – As part of his early work in physics, Galileo invents the hydrostatic balance and publishes his first scientific work, La Balancitta (The Little Balance). But Galileo wasn't convinced. 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