Galileo Galilei (1564-1642) was an Italian astronomer, physicist and engineer. Some of his key accomplishments included discovering the four largest moons of Jupiter in 1609-1610 using an improved telescope he developed. He also showed the importance of the telescope as a tool for astronomers by proving there were objects in space. Galileo published works supporting Copernicus' theory that the Earth and planets revolve around the sun, which brought him into conflict with the Catholic Church. He invented several devices including an early thermometer and a military compass that was later adapted for civilian use.

1. Galileo
Galilei,
www.doxologists.org
Tyler Keane
Lived Feb 15, 1564
And died Jan 8, 1642

2. Galileo’s Moons
The four moons were
discovered sometime
between 1609 and 1610 when
Galileo made improvements
to his telescope, which
enabled him to observe
celestial bodies more
libertadderelig
distinctly than had ion.blogspot.com
ever
been possible before

3. Telescopes
It was during his apprentice
period that Galileo worked
out much of his mechanics and
began his work with the
telescope
He had showed the importance
of the telescope as a tool for
astronomers by proving that
news.nationalgeogr
there were objects in space
and by doing so it had shown
the astronomers the fact

4. Leaving the Nest
In 1612 Galileo published a Discourse
on Floating Bodies, and in
1613, Letters on the Sunspots. In this
latter work he first expressed his
position in favor of Copernicus.
In 1614 both his daughters entered
the Franciscan convent of Saint
Mathew, near Florence.
Virginia became Sister Maria Celeste
and Livia, en.wikipedia.org

5. Mathematics
Galileo's father was hardly
overjoyed about this turn
of events Galileo started
tutoring students in
mathematics and he did some
experimenting with floating
objects, developing a
balance that could tell him
that a piece of something

6. Dante's Inferno
The Academy of Florence had
been arguing over a 100-yearold controversy: What were
the location, shape, and
dimensions of Dante's Inferno?
Galileo Galilei wanted to
seriously answer the question
from the point of view of a
scientist
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7. The Leaning Tower of Pisa
At the time that Galileo
arrived at the
University, some debate
had started up on one of
Aristotle's "laws" of
nature, that heavier
objects fell faster than
lighter objects
So he proved at the

8. Galileo’s
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inventers
Some of Galileo’s inventions
were created because Galileo
needed money to support his
family and help provide dowry
for his sisters
He created a simple
thermometer that could
register variations in
temperature but did not make
any money off of it and in 1596,
he built a compass used for
aiming cannonballs
It was also adapted for
civilian use in land surveying