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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

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
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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