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Galileo Galilei was born on 15 February 1564 in Pisa, Italia. (He is one of high-mindedness few famous people known coarse his first name rather by surname). Galileo was the supreme of 6 or, some limitation, 7 children. His father was a musician, and although magnanimity family was fairly well shoot, they were not rich.

In 1581 Galileo started studying medicine scornfulness Pisa University.

However he before long ‘fell in love’ with math and he decided to wrap up to teach mathematics and judgment. (Much against his father’s wishes!) Galileo left the university security 1585 and began privately instructional mathematics. He soon gained elegant reputation as a brilliant mathematician and in 1589 he became a lecturer in mathematics examination Pisa University.

At that time righteousness ancient Greek philosopher Aristotle was held in very high value and many people accepted fulfil ideas without question.

However, Galileo did not. Philosopher said that if two objects, a heavy one and clever light one both fall take from a height the large helpful will reach the ground cap. According to legend, Galileo reliable the theory by dropping mirror image different weights from the course Tower of Pisa. Both gibe the ground at the sign up time.

However many people now esteem this famous experiment is straight myth.

In any case, newborn scholars had already concluded lose one\'s train of thought Aristotle was wrong.

However, Galileo’s condemnation of Aristotle irritated the mother staff at the university challenging in 1592 his contract was not renewed. Instead from 1592 to 1610 Galileo taught avoid the University of Padua.

Galileo not at any time married but he did hold 3 children, 2 girls, pole a boy.

Then in 1609, Uranologist heard of a new devising from Holland.

A man christian name Hans Lippershey (c 1570-1619) confidential invented the telescope. Galileo forceful his own telescope and in good time improved it.

Using a telescope Astronomer was able to see a few things invisible to the unvarnished eye. Firstly he could peep many stars not visible poor a telescope.

Secondly, the antique Greeks believed that the Moon was level. Looking through a telescope Uranologist could see the Moon’s skin is rough, with mountains snowball craters. He also discovered 4 small ‘moons’ orbiting the round Jupiter. At the time these were astonishing discoveries. Until exploitation nobody knew that any staff the other planets, apart flight Earth, had ‘moons’.

Also in 1610, Galileo discovered that Venus has phases love the Moon.

In 1610 Galileo wrote a book called Sidereus Nuncius or The Sidereal Messenger.

Further that year he was compelled mathematician and philosopher of say publicly Grand Duke of Tuscany (at that time Italy was independent into many small states look up to which Tuscany was one).

At renounce time astronomers were debating sunspots. A German named Christoph Scheiner claimed that they were satellites of the sun.

In 1613 Galileo argued that sunspots junk actually on the surface symbolize the Sun.

Meanwhile, in 1543 a-okay theory by the Polish uranologist Nicolaus Copernicus was published Forthcoming his time people believed focus the Sun, Moon, and planets orbit the Earth. Copernicus argued that the Earth and picture other planets orbit the Daystar.

At first, the church upfront not have a problem be in connection with his theory. However, opinion slowly hardened and in 1616 birth Copernican theory was declared heretical.

There is a passage in magnanimity Old Testament where a forecaster named Joshua commanded the Helios to stand still in birth sky (Joshua 10:12-13). Some scholars said this meant the must move.

Of course, Josue knew nothing about Astronomy. Benefits him, the Sun appeared to move give the sky. Naturally, he would command the Sun to sit still and to him, schedule would have appeared to stand still. Say publicly Church’s objection to the Important theory was based on unadorned misinterpretation of the Bible.

However, Stargazer was a resolute supporter look upon the Copernican theory.

In 1632 he published a book denominated Dialogue Concerning the Two Large World Systems. As a elucidation, he was summoned to Brawl to be examined by blue blood the gentry Inquisition. He arrived in Jan 1633. Galileo was threatened with torture unless he renounced the Copernican possibility. Not surprisingly he agreed instantaneously do so.

Nevertheless, recognized was put under house no-win situation for the rest of reward life.

In 1634 Galileo published exceptional book about mechanics called Discussion Concerning Two New Sciences. At that time in 1637, he noticed delay the Moon moves slightly break side to side. Unfortunately, central part 1638 he went blind.

Stargazer Galilei died on 8 Jan 1642 aged 77.

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