Galileo had no diagrams to work from, and instead relied on his own system of trial and error to achieve the proper placement of the lenses. With this telescope, he was able to look at the moon, discover the four satellites of Jupiter, observe a supernova, verify the phases of Venus, and discover sunspots. He created a telescope later that same year that could magnify objects twenty times. The Telescope: Galileo made his first telescope in 1609, modeled after telescopes produced in other parts of Europe that could magnify objects three times. A group of academics and technicians known as the Accademia del Cimento of Florence, who included Galileo's pupil, Torricelli and Torricelli's pupil Viviani later invented a device known as the Galileo thermometer based on Galileo's principle on which this thermometer is based. However, the thermoscope depended on both temperature and pressure. Changes in temperature of the upper ball would exert positive or vacuum pressure on the water below, causing it to rise or lower in the thin column. The thermoscope was a device built from a small vase filled with water, attached to a thin vertically rising pipe, with a large empty glass ball at the top. The Thermoscope: One of Galileo Galilei's most noteworthy inventions was made in 1593, an earlier version of the thermometer. His contributions to observational astronomy include telescopic confirmation of the phases of Venus, observation of the four largest satellites of Jupiter, observation of Saturn's rings, and analysis of lunar craters and sunspots.

He invented the thermoscope and various military compasses, and used the telescope for scientific observations of celestial objects. Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of pendulums and 'hydrostatic balances'. He never completed this degree, but instead studied mathematics, notably with Ostilio Ricci, a mathematics teacher attached to the Tuscan court and the Florentine Accademia del Disegno. His role in promoting the Copernican theory and his travails and trials with the Roman Church are stories that still require re-telling.Īs a boy, Galileo was tutored privately and, for a time, by the monks at Vallombrosa, where he considered a religious vocation and then enrolled for a medical degree at the University of Pisa in 1580. His work in physics, astronomy and the methodology of science, still evoke debate after 458 years. He played a key role in the history of science and is a central figure of the Scientific Revolution of the seventeenth century. Galileo, full name Galileo di Vincenzo Bonaiuti de' Galilei, born on 15 February 1564, was an Italian Scientist and has been called the 'father' of observational Astronomy, Physics and modern science.

Galileo telescope importance