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A quick biography of Galileo Galilei.

Galileo's early life

Galileo was born in Pisa, Italy on February 15, 1564. His father, Vincenzo Galilei , was a musician. Galileo's mother was Giulia degli Ammannati. Galileowas the first of six (though some people believe seven) children. His family belonged to the nobility but was notrich. In the early 1570's, he and his family moved to Florence .

The pendelum

n 1581, Galileo began studying at the University of Pisa, where his father hoped he would study medicine. While at theUniversity of Pisa, Galileo began his study of the pendulum while, according to legend, he watched a suspended lamp swing back and forth in thecathedral of Pisa. However, it was not until 1602 that Galileo made his most notable discovery about the pendulum - theperiod (the time in which a pendulum swings back and forth) does not depend on the arc of the swing (theisochronism). Eventually, this discovery would lead to Galileo's further study of time intervals and the developmentof his idea for a pendulum clock.

On motion

In 1581, Galileo began studying at the University of Pisa, where his father hoped he would study medicine. While at theUniversity of Pisa, Galileo began his study of the pendulum while, according to legend, he watched a suspended lamp swingback and forth in the cathedral of Pisa. However, it was not until 1602 that Galileo made his most notable discovery aboutthe pendulum - the period (the time in which a pendulum swings back and forth) does not depend on the arc of the swing (theisochronism). Eventually, this discovery would lead to Galileo's further study of time intervals and the developmentof his idea for a pendulum clock.

Mechanical devices

In 1592, Galileo was appointed professor of mathematics at the University of Padua. While teaching there, he frequentlyvisited a place called the Arsenal, where Venetian ships were docked and loaded. Galileo had always been interested inmechanical devices. Naturally, during his visits to the Arsenal, he became fascinated by nautical technologies, suchas the sector and shipbuilding. In 1593, he was presented with the probleminvolving the placement of oars in galleys. He treated the oar as a lever and correctly made the water the fulcrum. A yearlater, he patented a model for a pump . His pump was a device that raised water by using only one horse.

Family life

Galileo was never married. However, he did have a brief relationship with Marina Gamba , a woman he met on one of his many trips to Venice. Marinalived in Galileo's house in Padua where she bore him three children. His two daughters, Virginia and Livia, were both putin convents where they became, respectively, Sister Maria Celeste and Sister Arcangela. In 1610, Galileo moved from Padua to Florence wherehe took a position at the Court of the Medici family . He left his son, Vincenzio, with Marina Gamba in Padua. In 1613, Marina marriedGiovanni Bartoluzzi, and Vincenzio joined his father in Florence.

Telescope

Galileo invented many mechanical devices other than the pump, such as the hydrostatic balance . But perhaps his most famous invention was the telescope . Galileo made his first telescope in 1609, modeled after telescopes produced in otherparts of Europe that could magnify objects three times. He created a telescope later that same year that could magnifyobjects twenty times. 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 . His discoveries proved the Copernican system which states that the earth and other plaqnets revolve around thesun. Prior to the Copernican system, it was held that the universe was geocentric, meaning the sun revolved around theearth.

The inquisition

Galileo's belief in the Copernican System eventually got him into trouble with the Catholic Church. The Inquisition was a permanent institution in the Catholic Church charged with theeradication of heresies. A committee of consultants declared to the Inquisition that the Copernican proposition that theSun is the center of the universe was a heresy. Because Galileo supported the Copernican system, he was warned by Cardinal Bellarmine , under order of Pope Paul V, that he should not discuss or defendCopernican theories. In 1624, Galileo was assured by Pope Urban VIII that he could write about Copernican theory as long as he treated it as amathematical proposition. However, with the printing of Galileo's book, Dialogue Concerning the Two Chief World Systems , Galileo was called to Rome in 1633 to face the Inquisition again. Galileo was found guilty of heresy for hisDialogue, and was sent to his home near Florence where he wasto be under house arrest for the remainder of his life. In 1638, the Inquisition allowed Galileo to move to his home inFlorence, so that he could be closer to his doctors. By that time he was totally blind. In 1642, Galileo died at his homeoutside Florence.

Questions & Answers

how can chip be made from sand
Eke Reply
is this allso about nanoscale material
Almas
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where is the latest information on a no technology how can I find it
William
currently
William
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Galileo project. OpenStax CNX. Jul 07, 2004 Download for free at http://cnx.org/content/col10234/1.1
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