# Erastothenes, writing homework help

After reading the posting for each group of mathematicians
you will write one-page-report highlighting the three mathematicians who made
the most significant contribution.
1- ErastothenesBorn-276 BC Libya
Died- 194 BC
Age upon death- 82
Eratosthenes was a Greek mathematician who was famous for his work of measuring the diameter of the earth (Eratosthenes of Cyrene).
Although not many believed in his work at the time, Eratosthenes also
measured the distance to the sun as 804,000,000 stadia (ancient Greek
unknit of measurement) and the distance to the Moon as 780,000 stadia.
He computed these distances through data that he had obtained during a
lunar eclipses. Another one of Eratosthenes many contributions was
creating an algorithm that discovered prime numbers. This algorithm is
called the sieve of Eratosthenes. The sieve of Eratosthenes worked by
eliminating all the numbers up to a certain number that were not prime. (Finding the Circumference of the Earth)
Aside from that, Eratosthenes also made contributions to science,
geography, and literature, providing detailed maps, some containing 675
stars. And discovering the Nile river flood patterns.
Work Cited
Eratosthenes of Cyrene. January 1999. Feb 2016. .
Finding the Circumference of the Earth. n.d. 2 Feb 2016. .  _____2- Plato
428 BCE Athens Greece

Deceased 348 BCE age 80

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Plato was born in 428 BC it is said to have Been born on the seventh day of the ancient Athenian lunar month of Thargelion , approximately May 21. However there are others who believe his birthday is November 7 or not quite sure. He was born in Athens Greece Plato died at the age of 80 and 348 B.C.E.

Plate had a strong Belief that everyone should study and master the five mathematic disciplines which are: arithmetic, plane geometry, solid geometry ,astronomy and harmonies. Nonetheless , one could not master philosophy without it. He also argued the benefits of calculating  and how it affects in many scenarios.

His academy was founded in 387 B.C.E. where he taught that math was important to  understanding
reality  situations such as a general could not sought into battle
without geometrical knowledge of math to know which locations to attack
and March.

Plato
is known for the five platonic solids tetrahedron, octahedron. Cube,
dodecahedron, icosahedrons inspired by these solids a German astronomer
in the 1600s Johanna Kepler he was able to use these five solids to
measure distances of known planets.work cited
“Plato.”Summary. Web. 05 Feb. 2016. .

“Plato – Greek Mathematics – The Story of Mathematics.”Plato – Greek Mathematics – The Story of Mathematics. Web. 05 Feb. 2016. .
________3-Roger Bacon Born: 1214
Died: 1292
Approximate age at death was 78
He was an English mathematician. His most
important mathematical contribution is the application of geometry to
optics. Bacon was one of the main professors to reintroduce Aristotle’s
teachings after the University of Paris banned his teachings because he
was not a Christian. Bacon studied Aristotle’s teachings while he
received a masters degree at Oxford University. So when the university
removed the ban of Aristotle’s teaching they sought after Bacon to be
one of their main professors to reintroduce them back into Aristotle’s
teachings.
Bacon tried to study science in a way
that would benefit the church and strengthen its teachings and
scriptures through science as a devout Christian. He discovered a
rainbow is actually 42 degrees in diameter which was far more accurate
than the former theory. He also was one of the first scientists and
mathematicians to believe the earth to be a sphere that one could sail
all the way around it.
Source: http://www-gap.dcs.st-and.ac.uk/~history/Posters2/Bacon.html
http://www-history.mcs.st-andrews.ac.uk/Biographies/Bacon.html

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