Search results
Feb 3, 2012 · Ptolemy I Soter (366-282 BCE) was one of the successor kings to the empire of Alexander the Great. He served not only as king of Egypt but also the founder of the Ptolemaic Dynasty, a dynasty which included the infamous Cleopatra VII. Early Life & Persian Campaign. Ptolemy was a Macedonian nobleman, son of Lagos.
Died : 170 AD, Alexandria, Egypt, Roman Empire. Claudius Ptolemy was a 2nd century Greek mathematician, astronomer and geographer famous for his controversial geocentric theory of the universe ...
Ptolemy , Latin Claudius Ptolemaeus, (born c. ad 100—died c. ad 170), Greek astronomer and mathematician. He worked principally in Alexandria. It is often difficult to determine which findings in his great astronomical book, the Almagest, are Ptolemy’s and which are Hipparchus’s. The Sun, Moon, planets, and stars, he believed, were ...
The Almagest. Ptolemy’s most famous work is the Almagest, an astronomy textbook and star catalogue. The Almagest was a substantial, ambitious work. It taught its students how to predict the location of any heavenly body at any time from anywhere on Earth using Ptolemy’s mathematical model of planet movements.
Ptolemy, or in Latin Claudius Ptolemaeus (ca. 90 – ca. 168 C.E.), was a mathematician, philosopher, geographer, map maker, astronomer, theologian, and astrologer who lived in Alexandria, Egypt. He is most remembered because of his development of the geocentric (Earth-centered) cosmological system, known as the Ptolemaic system or Ptolemaic ...
Portrait of Ptolemy by Andre Thevet © Bettmann/CORBIS. By Cynthia Stokes Brown. The Earth was the center of the Universe according to Claudius Ptolemy, whose view of the cosmos persisted for 1400 years until it was overturned — with controversy — by findings from Copernicus, Galileo, and Newton.
Claudius Ptolemy ( / ˈtɒləmi /; Greek: Πτολεμαῖος, Ptolemaios; Latin: Claudius Ptolemaeus; c. 100 – c. 170 AD) was an Alexandrian mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine, Islamic, and Western European science.
