Search results
His work is comparable to what is now known as the study of geography, and he introduced some of the terminology still used today. [1] 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 ...
Oct 7, 2024 · Eratosthenes (born c. 276 bce, Cyrene, Libya—died c. 194 bce, Alexandria, Egypt) was a Greek scientific writer, astronomer, and poet, who made the first measurement of the size of Earth for which any details are known. At Syene (now Aswān), some 800 km (500 miles) southeast of Alexandria in Egypt, the Sun’s rays fall vertically at noon at ...
- The Editors of Encyclopaedia Britannica
- In addition to calculating Earth’s circumference, Eratosthenes created the Sieve of Eratosthenes (a procedure for finding prime numbers), tried to...
- Eratosthenes measured Earth’s circumference mathematically using two surface points to make the calculation. He noted that the Sun’s rays fell vert...
- Eratosthenes died in his 80s in Alexandria, Egypt. He had become blind in his old age and could no longer work by 195 BCE. He reportedly fell into...
Biography. Eratosthenes was born in Cyrene which is now in Libya in North Africa. His teachers included the scholar Lysanias of Cyrene and the philosopher Ariston of Chios who had studied under Zeno, the founder of the Stoic school of philosophy. Eratosthenes also studied under the poet and scholar Callimachus who had also been born in Cyrene.
Mar 3, 2022 · Eratosthenes (l. c. 276-195 BCE) was a Greek astronomer, geographer, mathematician, and poet best known for being the first to calculate the circumference of the earth and its axial tilt. He is also recognized for his mathematical innovation, the Sieve of Eratosthenes, which identified prime numbers, and his position as head of the Library at ...
- Joshua J. Mark
- Eratosthenes (l.c. 276-195 BCE) was a Greek polymath best known as the first to calculate the circumference of the earth.
- Eratosthenes is famous for being the first to calculate the circumference of the earth.
- Eratosthenes is called the Father of Geography because he not only coined the term "Geography" but was the first to write a comprehensive work on t...
- The Greek philosopher Aristotle is credited with first calculating the size of the earth but the later polymath Eratosthenes' calculations were mor...
- Eratosthenes' primary influence was Academic Skepticism which encouraged people to think and judge for themselves instead of accepting common knowl...
The Greek scientist Eratosthenes was the first person to calculate Earth’s circumference. He worked as chief librarian of the Alexandrian Library in Egypt and was also known as a writer, an astronomer, a mathematician, and a poet. Born about 276 bc in Cyrene, in what is now Libya, Eratosthenes studied in Alexandria and Athens, Greece.
Jul 3, 2019 · Eratosthenes of Cyrene (c. 276 BCE–192 or 194 BCE) was an ancient Greek mathematician, poet, and astronomer who is known as the father of geography.Eratosthenes was the first person to use the word "geography" and other geographical terms that are still in use today, and his efforts to calculate the circumference of the Earth and the distance from the Earth to the Sun paved the way for our ...
People also ask
Who was the first person to calculate Earth's circumference?
Did Eratosthenes measure the Earth?
Who was the first person to see the Moon through a telescope?
Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642), commonly referred to as Galileo Galilei (/ ˌ ɡ æ l ɪ ˈ l eɪ oʊ ˌ ɡ æ l ɪ ˈ l eɪ /, US also / ˌ ɡ æ l ɪ ˈ l iː oʊ-/; Italian: [ɡaliˈlɛːo ɡaliˈlɛːi]) or mononymously as Galileo, was an Italian (Florentine) [a] astronomer, physicist and engineer, sometimes described as a polymath.
