Definitions for eratosthenes
ˌɛr əˈtɒs θəˌnizer·atos·thenes

Princeton's WordNetRate this definition:3.0 / 2 votes

1. Eratosthenesnoun

   Greek mathematician and astronomer who estimated the circumference of the earth and the distances to the Moon and sun (276-194 BC)

WikipediaRate this definition:0.0 / 0 votes

1. Eratosthenes

   Eratosthenes of Cyrene (; Greek: Ἐρατοσθένης [eratostʰénɛːs]; c. 276 BC – c. 195/194 BC) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. His work is comparable to what is now known as the study of geography, and he introduced some of the terminology still used today.He is best known for being the first person known to calculate the circumference of the Earth, which he did by using the extensive survey results he could access in his role at the Library; his calculation was remarkably accurate. He was also the first to calculate Earth's axial tilt, which has also proved to have remarkable accuracy. He created the first global projection of the world, incorporating parallels and meridians based on the available geographic knowledge of his era. Eratosthenes was the founder of scientific chronology; he used Egyptian and Persian records to estimate the dates of the main events of the mythical Trojan War, dating the Sack of Troy to 1183 BC. In number theory, he introduced the sieve of Eratosthenes, an efficient method of identifying prime numbers. He was a figure of influence in many fields who yearned to understand the complexities of the entire world. His devotees nicknamed him Pentathlos after the Olympians who were well rounded competitors, for he had proven himself to be knowledgeable in every area of learning. Yet, according to an entry in the Suda (a 10th-century encyclopedia), some critics scorned him, calling him Beta (the second letter of the Greek alphabet) because he always came in second in all his endeavours.

ChatGPTRate this definition:0.0 / 0 votes

1. eratosthenes

   Eratosthenes was a Greek mathematician, astronomer, poet, and geographer who lived from 276 to 194 BC. He is renowned for being the chief librarian at the Library of Alexandria and for inventing a system of latitude and longitude. However, his most significant contribution was accurately calculating the Earth's circumference through a method that later came to be known as the 'Sieve of Eratosthenes', used for finding all prime numbers up to a given limit.

WikidataRate this definition:4.0 / 1 vote

1. Eratosthenes

   Eratosthenes of Cyrene was a Greek mathematician, geographer, poet, astronomer, and music theorist. He was the first person to use the word "geography" in Greek and he invented the discipline of geography as we understand it. He invented a system of latitude and longitude. He was the first person to calculate the circumference of the earth by using a measuring system using stades, or the length of stadiums during that time period. He was the first to calculate the tilt of the Earth's axis. He may also have accurately calculated the distance from the earth to the sun and invented the leap day. He also created the first map of the world incorporating parallels and meridians within his cartographic depictions based on the available geographical knowledge of the era. In addition, Eratosthenes was the founder of scientific chronology; he endeavoured to fix the dates of the chief literary and political events from the conquest of Troy. According to an entry in the Suda, his contemporaries nicknamed him beta, from the second letter of the Greek alphabet, because he supposedly proved himself to be the second best in the world in almost every field.

The Nuttall EncyclopediaRate this definition:5.0 / 1 vote

1. Eratosthenes

   surnamed the Philologist, a philosopher of Alexandria, born at Cyrene, 276 B.C.; becoming blind and tired of life, he starved himself to death at the age of 80; he ranks high among ancient astronomers; measured the obliquity of the ecliptic, and estimated the size of the earth (276-194 B.C.).

Editors ContributionRate this definition:2.5 / 4 votes

1. eratosthenes

   Inventor of the setting sun.

   Tene = inventor, to = settle , ra= the sun.

   
   

   Submitted by anonymous on April 27, 2019  

Matched Categories

1. • Astronomer
   • Mathematician

How to pronounce eratosthenes?

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Numerology

1. Chaldean Numerology

   The numerical value of eratosthenes in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of eratosthenes in Pythagorean Numerology is: 5

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=eratosthenes
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Eratosthenes
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=eratosthenes
5. ^ The Nuttall Encyclopedia
   https://www.gutenberg.org/cache/epub/12342/pg12342-images.html#Eratosthenes