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Who was Ptolemy and what did he do?
Who was Claudius Ptolemy?
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May 21, 2024 · Ptolemy (born c. 100 ce —died c. 170 ce) was 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 of the universe now known as ...
Sep 7, 2023 · Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric model of the universe with planets following orbits within orbits, were hugely influential until they were replaced by the heliocentric model ...
- Mark Cartwright
- Claudius Ptolemy is best known for being a 2nd-century Alexandrian astronomer who created a model of the universe with Earth as its centre. Ptolemy...
- Claudius Ptolemy's theory of the universe is that Earth is at the centre while the other planets and the Sun move around it. These heavenly bodies...
- Claudius Ptolemy's world map was relatively accurate for the Mediterranean region, but because nobody had been there, other parts of the world were...
Learn about Claudius Ptolemy, the 2nd century AD scholar who developed the geocentric theory of the universe and the global coordinates system. Find out why he is a controversial figure in the history of science and how his work influenced medieval astronomy and geography.
The Almagest / ˈælmədʒɛst / is a 2nd-century mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy ( c. AD 100 – c. 170) in Koine Greek. [1] .
Learn about Claudius Ptolemy, the only great astronomer of Roman Alexandria, who developed a geocentric model of the Universe based on observations and mathematics. Find out how his ideas influenced and were challenged by later scholars in different cultures and times.
Jul 3, 2019 · Learn about Claudius Ptolemy, a Greek-Egyptian scientist who lived in Alexandria and wrote the Almagest, a comprehensive treatise on astronomy. He also developed the Ptolemaic System, a geocentric model of the solar system, and the Geography, a map of the known world.
