1. GALILEO DI VINCENZO
BONAIVTI DE' GALILEI
By Damian.A

2. BORN AND DIED Galileo Galilei was born in 1564 in Pisa, Italy.
His father, Vincenzo Galilei, was a famous
musician. Galileo died in 1642 of fever and
heart disease.

3. EARLY LIFE Galileo was the first of 6 [though some people
believe 7] children. When he was 8 years of
age his family moved to Florence but he stayed
at home with a personal tutor. Galileo was
educated at Camaldose Monastery at Vallombrossa.
At the age of 17 years he went to study medicine
at the University of Pisa but after 2 years found
that he preferred to study mathematics with
Ostilio Ricci.

4. LIFE AND WORKS Galileo grew up to be an astronomer and was awarded
the chair of mathematics. In 1610 he made his very own
telescope that could magnify 20x more than regular
telescopes. With his telescope he discovered the 4 moons
of Jupiter named the Galilean satellites in his honor. He
wrote about his discoveries in books and some even got
published. One of his most famous books was called
Sidereus Nuncius [Starry Messenger]. Soon after his
discovery of Jupiter’s 4 moons he discovered that heavier
objects fall faster than lighter objects. A few years later
he discovered that all the planets in the Solar System
orbit the Sun.

5. After every discovery Galileo made people gave him new nicknames
like: ‘The Father of Modern Science’ and ‘The father of science’.

6. GALILEO'S FAMILY LIFE
Galileo was never married, though he had a brief relationship with Marina Gamba. Marina lived in Galileo’s house where she bore him three children. His two daughters, Virginia and Livia, were put in convents where they became Sister Maria Cleste and Sister Arcangela.

7. GALILEO AND THE PENDULM
Galileo began studying at the University of Pisa where his father hoped he would study medicine in While he studied at the university, he began his study of the pendulum. According to legend, he watched a suspended lamp swing back and forth in the cathedral of Pisa. It was not until 1602 that Galileo made his most notable discovery. The period{ the time in which a pendulum swings back and forth} does not depend on the arc of the swing. This discovery would later lead to Galileo’s idea for a pendulum clock.

8. GALILEO'S TELESCOPE Galileo’s Telescopes
Galileo was not the first to invent the telescope but he was the first to use it systematically to observe celestial objects and record his discoveries. His book Sidereus Nuncius [Starry Messenger] was first published in 1610 and made him famous in which he wrote about his discoveries of the Moon, Jupiter and the Milky Way.
Galileo’s Telescopes
The most basic tool that Galileo ever used was a crude refracting telescope which only magnified 8x but he refined it to magnify up to 20x. He used this telescope for the discoveries he recorded for ‘ The Starry Messenger’. The telescope had a convex objective lens and a concave eyepiece in a long tube.

9. Galileo’s Observations
But the main problem with the telescopes was their narrow field of view, typically about half the width of the Moon.
Galileo’s Observations
The Moon: According to the Aristotelian principles, the Moon

10. INTERESTING FACTS married because he lived with a woman?
Did you know that some people believed that Galileo was
married because he lived with a woman?
Did you know that Galileo was put under house arrest?
Did you know that he took the prestigious chair of
mathematics at the University of Padua?

11. THANKS FOR WATCHING!