[DOC] [TLE] Eratosthenes - Wikipedia [PAR] Eratosthenes of Cyrene was a Greek mathematician, geographer, poet, 
astronomer, and music theorist. He was a man of learning, becoming the chief 
librarian at the Library of ... He was also the first to calculate the tilt of the Earth's 
axis (again with .... Carl Sagan says that Eratosthenes paid a man to walk and 
measure the... [DOC] [TLE] Eratosthenes of Cyrene | 4.3Ways of Knowing: Our Solar System ... [PAR] Measuring the Circumference of the Earth ... When the chief librarian of the 
famous Library of Alexandria died in 236 BCE, Eratosthenes was appointed to 
the... [DOC] [TLE] Determining the earth's size [PAR] In the third century BCE , Eratosthenes, a Greek librarian in Alexandria , Egypt ... 
Eratosthenes determined the earth's size by observing known phenomena and ... 
Many scholars believe Eratosthenes measured the distance by measuring a... [DOC] [TLE] Eratosthenes of Cyrene facts, information, pictures | Encyclopedia ... [PAR] Using elegant mathematical reasoning and limited empirical measurement, ... 
Eratosthenes served as the third librarian at the Great Library in Alexandria. ... it 
is known from the writings of other Greek scholars that Eratosthenes' writings and 
work ... for his accurate and ingenious calculation of the circumference of the 
earth. [DOC] [TLE] Eratosthenes biography - MacTutor History of Mathematics [PAR] Biography of Eratosthenes (276 BC-194 BC) ... 240 BC, Eratosthenes became 
the third librarian at Alexandria, in the library ... By the famous result of 
Hippocrates it was known that solving the problem of finding ... In the field of 
geodesy, however, Eratosthenes will always be remembered for his 
measurements of the Earth. [DOC] [TLE] Eratosthenes | Greek scientist | Britannica.com [PAR] Sep 30, 2016 ... Eratosthenes' method of measuring Earth's circumference. ... The Greek writer 
Eratosthenes (3rd century bce) described ... He worked as chief librarian of the 
Alexandrian Library in Egypt and was also known as a writer,... [DOC] [TLE] Eratosthenes: The Measurement of the Earth's Circumference [PAR] He is noted for devising a map system based on latitude and longitude lines and 
... In 236 BC he was appointed by Ptolemy III Euergetes I as librarian of the ... 
Eratosthenes will always be remembered for the calculation of the Earth's... [DOC] [TLE] Eratosthenes - Famous Mathematicians [PAR] Eratosthenes Biography - The mathematician is also known as Eratosthenes of 
Cyrene, ... He was also the third chief librarian of the Great Library of Alexandria. 
... to determine prime numbers which is known as the Sieve of Eratosthenes. ... '
On the Measurement of the Earth' outlined Eratosthenes' efforts by Cleomedes. [DOC] [TLE] Chapter 17:Eratosthenes [PAR] He used a shadow to measure not just a pyramid, but the whole round earth! 
These two events ... The librarian was a Creek named Eratosthenes. A universal
... [DOC] [TLE] Eratosthenes - Environment - Ecology [PAR] He was the first to calculate the tilt of the Earth's axis (also with remarkable 
accuracy). ... He was the third chief librarian of the Great Library of Alexandria, 
the center of science ... Eratosthenes' measurement of the Earth's circumference 
... solstice at local noon in the Ancient Egyptian city of Swenet (known in Greek as 
Syene,... [DOC] [TLE] Greek Mathematician Eratosthenes Profile - Ancient / Classical History [PAR] Eratosthenes was the third librarian at the famous Library of Alexandria. ... His 
most famous calculation, in the now lost treatise On the Measurement of the Earth
,... [DOC] [TLE] Eratosthenes - Engrade Wikis [PAR] Then Eratosthenes became the 3rd librarian at the Alexandria library. ... He was 
famous for his work of prime numbers as well as measuring and find out the ... 
Eratosthenes was the first person to calculate the circumference of the earth by... [DOC] [TLE] Calculating the Size of the Earth | Brilliant Math & Science Wiki [PAR] The study of the size and shape of earth is known as geodesy and has been ... in 
calculating the entire Earth without being able to see or measure most of it and 
for ... studied in Athens, and became the head librarian at the Library of 
Alexandria. ... be concluded that Eratosthenes had no first, second, or third hand 
knowledge

Question: Third librarian Eratosthenes is famous for determining this measurement of the Earth
Answer: Circumference