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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

explain and give four Example hyperbolic function
Lukman Reply
The denominator of a certain fraction is 9 more than the numerator. If 6 is added to both terms of the fraction, the value of the fraction becomes 2/3. Find the original fraction. 2. The sum of the least and greatest of 3 consecutive integers is 60. What are the valu
SABAL Reply
1. x + 6 2 -------------- = _ x + 9 + 6 3 x + 6 3 ----------- x -- (cross multiply) x + 15 2 3(x + 6) = 2(x + 15) 3x + 18 = 2x + 30 (-2x from both) x + 18 = 30 (-18 from both) x = 12 Test: 12 + 6 18 2 -------------- = --- = --- 12 + 9 + 6 27 3
Pawel
2. (x) + (x + 2) = 60 2x + 2 = 60 2x = 58 x = 29 29, 30, & 31
Pawel
Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 1 more than 3 times the number of marbles Mark has, how many does each boy have to sell if the total number of marbles is 113?
mariel Reply
Mark = x,. Don = 3x + 1 x + 3x + 1 = 113 4x = 112, x = 28 Mark = 28, Don = 85, 28 + 85 = 113
Pawel
how do I set up the problem?
Harshika Reply
what is a solution set?
Harshika
find the subring of gaussian integers?
Rofiqul
hello, I am happy to help!
Shirley Reply
please can go further on polynomials quadratic
Abdullahi
hi mam
Mark
I need quadratic equation link to Alpa Beta
Abdullahi Reply
find the value of 2x=32
Felix Reply
divide by 2 on each side of the equal sign to solve for x
corri
X=16
Michael
Want to review on complex number 1.What are complex number 2.How to solve complex number problems.
Beyan
yes i wantt to review
Mark
use the y -intercept and slope to sketch the graph of the equation y=6x
Only Reply
how do we prove the quadratic formular
Seidu Reply
please help me prove quadratic formula
Darius
hello, if you have a question about Algebra 2. I may be able to help. I am an Algebra 2 Teacher
Shirley Reply
thank you help me with how to prove the quadratic equation
Seidu
may God blessed u for that. Please I want u to help me in sets.
Opoku
what is math number
Tric Reply
4
Trista
x-2y+3z=-3 2x-y+z=7 -x+3y-z=6
Sidiki Reply
can you teacch how to solve that🙏
Mark
Solve for the first variable in one of the equations, then substitute the result into the other equation. Point For: (6111,4111,−411)(6111,4111,-411) Equation Form: x=6111,y=4111,z=−411x=6111,y=4111,z=-411
Brenna
(61/11,41/11,−4/11)
Brenna
x=61/11 y=41/11 z=−4/11 x=61/11 y=41/11 z=-4/11
Brenna
Need help solving this problem (2/7)^-2
Simone Reply
x+2y-z=7
Sidiki
what is the coefficient of -4×
Mehri Reply
-1
Shedrak
the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Kimberly Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
Shanjida
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
s.
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris 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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