Annotazioni in lingua inglese sui protagonisti dell'epoca: Copernico, Keplero, Galileo, Tudor, Elizabeth I (4 pagine formato doc)
This period was characterized by important discoveries in the sciences:
-Nicolas Copernicus (1473-1543)
-Johannes Kepler (1571-1630)
-Galileo Galilei ( 1564-1642)
Copernicus was a Polish astronomer. Who discovered that the earth and the other planets orbited around the sun and that the earth spun on its own axis. His theory was opposite to that of Ptolemy according to which the earth was the fixed centre of the universe around which the other planets and sheers revolved in concentric circles. It was published in his "De Revolutionibus Orbium Coelestium" in 1543.
Kepler was a German astronomer who rected Copernicus theory. He demonstrated that the planets did not move in circles, as Copernicus believed but in elliptical orbits with the sun at one focus. This was the fush of Kepler's three laws of planetary motion. According of the second law Kepler: the velocity of the orbiting planets waried in relation to how far they were from the sun.
Galileo Galilei was an Italian astronomer who discovered the importuned of acceleration. Only movement in a shoright lie was "natural". Galileo shouted that every lady, if left alone, warred continue to wore in a straight lui . A change of speed or director was prorated by an outside force acting on the body. Galileo was publicly fried in 1633. The consequence of these discoveres was the rinozioul of the centre from its position of geometrical pre-eminence. The universe was longer considered as a fixed order but as a dipianst system.
Kepler and Galileo corrected the theory by Copernicus.
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