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Ptolemy | Accomplishments, Biography, & Facts | Britannica
2025年2月12日 · Ptolemy was an astronomer, mathematician, and geographer who lived during the 2nd century CE. He is known for his geocentric (Earth-centred) model of the universe.
Claudius Ptolemy - World History Encyclopedia
2023年9月7日 · 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's Almagest book became the standard work on astronomy until the 17th century.
Claudius Ptolemy - Biography, Facts and Pictures - Famous Scientists
Claudius Ptolemy was born in about the year 100 AD, almost certainly in Egypt. He lived in the metropolis of Alexandria on Egypt’s Mediterranean coast. Alexandria was built by the Ancient Greeks, but later conquered by the Romans. Claudius is a Roman name and Claudius Ptolemy was a Roman citizen.
Claudius Ptolemy | Greek mathematician and astronomer - New Scientist
Claudius Ptolemy was a 2nd century Greek mathematician, astronomer and geographer famous for his controversial geocentric theory of the universe, which would form the basis of our...
Ptolemy - Simple English Wikipedia, the free encyclopedia
Claudius Ptolemy (Koinē Greek: Κλαύδιος Πτολεμαῖος, romanized: Klaúdios Ptolemaîos [kláwdios ptolɛmɛ́os]; Latin: Claudius Ptolemaeus; c. AD 100 – c. AD 170) was a Greek who probably lived and worked in Alexandria, Egypt.
Claudius Ptolemy: The Famed Alexandrian Mathematician and …
2024年5月23日 · Claudius Ptolemy was a prominent Alexandrian mathematician, astronomer, astrologer, geographer, and music theorist who lived around 100 to 170 AD. He authored around a dozen scientific treatises, three of which had significant influence on Byzantine, Islamic, and Western European science.
Get to Know Claudius Ptolemy & His Geocentric Model of the …
2023年12月10日 · Claudius Ptolemy was a scientist from Alexandria who lived in the 2nd century CE. His main contribution to astronomy was a detailed Ptolemaic model of the universe, a geocentric system that has Earth in the center and planets revolving around it.
The Life of Astronomer Claudius Ptolemy - ThoughtCo
2019年7月3日 · Claudius Ptolemy (often called Claudius Ptolemaeus, Ptolomaeus, Klaudios Ptolemaios, and simply Ptolemeus) was one of the earliest of these observers. He systematically charted the sky to help predict and explain the motions of the planets and stars.
Claudius Ptolemy (100–170) | High Altitude Observatory
By making extensive use of the geometrical constructions known as epicycles and equants, Ptolemy constructed a mathematical model of planetary motion that did far better at predicting planetary positions than anything else produced in antiquity.
Claudius Ptolemy - Encyclopedia.com
2018年5月23日 · The Greek astronomer, astrologer, and geographer Claudius Ptolemy (ca. 100-ca. 170) established the system of mathematical astronomy that remained standard in Christian and Moslem countries until the 16th century.
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