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A biography and life work of galileo galilei

NASA Italian astronomer Galileo Galilei provided a number of scientific insights that laid the foundation for future scientists. His investigation of the laws of motion and improvements on the telescope helped further the understanding of the world and universe around him.

  • But this would take more explaining Dijksterhuis 1950, Machamer et al;
  • Guilia, who was born in Pescia, married Vincenzo in 1563 and they made their home in the countryside near Pisa.

Both led him to question the current belief of the time — that all things revolved around the Earth. But Galileo wasn't convinced. Experimenting with balls of different sizes and weights, he rolled them down ramps with various inclinations.

Early life and career

His experiments revealed that all of the balls boasted the same acceleration independent of their mass. He also demonstrated that objects thrown in the air travel along a parabola.

At the same time, Galileo worked with pendulums. In his life, accurate timekeeping was virtually nonexistent. Galileo observed, however, that the steady motion of a pendulum could improve this. 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.

  • One would expect that Galileo's understanding of the pendulum, which he had since he was a young man, would have led him to design a pendulum clock;
  • The astronomical discoveries he made with his telescopes were described in a short book called the Starry Messenger published in Venice in May 1610;
  • Galileo signals this goal clearly when he leaves Padua in 1611 to return to Florence and the court of the Medici and asks for the title Philosopher as well as Mathematician;
  • Only those motions differing from a shared common motion could be seen as moving;
  • Interestingly Galileo, here again, revisited or felt the need to include some anti-Aristotelian points about motion as he had done back in 1590.

Near the end of his lifetime, Galileo designed the first pendulum clock. Galileo's telescope Galileo is often incorrectly credited with the creation of a telescope.

Hans Lippershey applied for the first patent in 1608, but others may have beaten him to the actual invention.

  1. Something he had begun back in 1590, though this time he believes he is getting it right, showing mathematically how bits of matter solidify and stick together, and do so by showing how they break into bits. Galileo discovered many things.
  2. His mathematics teacher at Pisa was Filippo Fantoni, who held the chair of mathematics.
  3. In fact he had returned to work on the theory of motion in 1602 and over the following two years, through his study of inclined planes and the pendulum, he had formulated the correct law of falling bodies and had worked out that a projectile follows a parabolic path.

Instead, he significantly improved upon them. In 1609, he first learned of the existence of the spyglass, which excited him.

Galileo Galilei: Biography, Inventions & Other Facts

He began to experiment with telescope-makinggoing so far as to grind and polish his own lenses. His telescope allowed him to see with a magnification of eight or nine times. In comparison, spyglasses of the day only provided a magnification of three. It wasn't long before Galileo turned his telescope to the heavens. He was the first to see craters on the moon, he discovered sunspots, and he tracked the phases of Venus.

Galileo Galilei

The rings of Saturn puzzled him, appearing as lobes and vanishing when they were edge-on — but he saw them, which was more than can be said of his contemporaries. 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: IoGanymedeEuropa and Callisto.

Galileo Galilei 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. These observations also established that there are not only three, but four, erratic sidereal bodies performing their revolutions around Jupiter.

  1. By using the lengths of their shadows, Galileo was… Early life and career Galileo was born in Pisa , Tuscany , on February 15, 1564, the oldest son of Vincenzo Galilei , a musician who made important contributions to the theory and practice of music and who may have performed some experiments with Galileo in 1588—89 on the relationship between pitch and the tension of strings. In 1592 he was appointed, at a much higher salary, to the position of mathematician at the University of Padua.
  2. She had been a great support to her father through his illnesses and Galileo was shattered and could not work for many months.
  3. Shapere, Dudley, 1974, Galileo.
  4. While in Padua he met Marina Gamba, and in 1600 their daughter Virginia was born.

While observing Jupiter's moons in 1612 and 1613, he recorded a nearby star whose position is not found in any modern catalogues.

Supported by the Catholic Church, teaching opposite of this system was declared heresy in 1615. Galileo, however, did not agree.

  • This did not enable one to decide between the Copernican system, in which everything goes round the Sun, and that proposed by Tycho Brahe in which everything but the Earth and Moon goes round the Sun which in turn goes round the Earth;
  • It was a sad end for so great a man to die condemned of heresy;
  • In August of that year he presented an eight-powered instrument to the Venetian Senate Padua was in the Venetian Republic;
  • Galileo's telescope Galileo is often incorrectly credited with the creation of a telescope;
  • But Galileo wasn't convinced;
  • It has even been argued Redondi 1983 that the charge of Copernicanism was a compromise plea bargain to avoid the truly heretical charge of atomism.

His research — including his observations of the phases of Venus and the fact that Jupiter boasted moons that didn't orbit Earth — supported the Copernican system, which correctly stated that the Earth and other planets circle the sun.

In 1616, he was summoned to Rome and warned not to teach or write about this controversial theory.

Galileo's telescope

But in 1632, believing that he could write on the subject if he treated it as a mathematical proposition, he published work on the Copernican system. He was found guilty of heresyand was placed under house arrest for the remaining nine years of his life.

Galileo quotes "And yet it moves.