WebPtolemy, Latin in full Claudius Ptolemaeus, (born c. 100 ce—died c. 170 ce), an Egyptian astronomer, mathematician, and geographer of Greek descent who flourished in Alexandria during the 2nd century ce. In several fields his writings represent the culminating achievement of Greco-Roman science, particularly his geocentric (Earth-centred) model … WebEratosthenes of Cyrene was born in 276 BC to Aglaos. Cyrene became the center of knowledge at that time and young Eratosthenes received training in social discourse, physical skills, arithmetic, music and poetry. Subsequently, he went to Athens to further his horizons and expand his knowledge. Zeno of Citium taught him stoicism, a philosophy on ...
Eratosthenes Biography - Facts, Childhood, Family Life & Achieve…
WebMay 31, 2024 · One of Eratosthenes’ contributions to mathematics was his measurement of the Earth. He calculated the circumference of the Earth to be about 252,000 stadi … WebAmong Eratosthenes' accomplishments was the accurate measurement the diameter of the Earth by observing that, on the day of the summer solstice, the Sun was directly overhead in Syene while it was 7° from the zenith in Alexandria, which he assumed was due north of Syene (Dunham 1990). Unfortunately, since the original work On the … kurikulum operasional sekolah sd
Hipparchus Biography, Discoveries, Accomplishments, & Facts
WebMay 19, 2024 · Eratosthenes was an ancient Greek mathematician, geographer, and astronomer. He existed from 276 B.C. until 194 B.C. and is most notable for having the first accurate calculation of the Earth’s circumference. He lived and worked in the Egyptian city of Alexandria for much of his life. WebHe invented the armillary sphere, a model of objects in the sky, in 255 BC. Additionally, he calculated the circumference of the Earth by incorporating the data of angle of … http://t.biographybase.com/biography/Eratosthenes.html kurikulum pada sekolah inklusif