Other
Explorable: Ancient Astronomy, Science and the Ancient Greeks
Discusses the influences of other cultures on ancient Greek astronomers, and the advances made by the Greeks. It highlights major astronomers and those who contributed important ideas from the 6th to the 2nd centuries BC, including...
Other
History World: History of Greek Science
Presents the history of Greek science from the 6th century BC to the 2nd century AD. Navigate using the menu on the left. Covers major figures in science and mathematics, their theories and beliefs, and the influence they had, as well as...
Smithsonian Institution
National Air and Space Museum: Exploring the Planets: Ancient Times & the Greeks
In ancient times only five planets were known: Mercury, Venus, Mars, Jupiter, and Saturn. Learn about Greek astronomer Ptolemy's theory for the solar system that was to survive for fourteen centuries.
CPALMS
Florida State University Cpalms: Florida Students: Center Stage: Models of the Solar System
An explanation of two very different perspectives of the solar system.
University of St. Andrews (UK)
University of St. Andrews: Greek Astronomy
Provides an overview of ancient Greek astronomy and the major figures who played a role in developing ideas about the Universe.
University of Virginia
University of Virginia: How the Greeks Used Geometry to Understand the Stars
An article explaining how the Greeks were able to use their science and mathematics to predict where astronomical objects such as the Planets could be found in the nighttime sky even though their underlying premise was that the earth did...
University of St. Andrews (UK)
University of St. Andrews: Hypatia of Alexandria
The University of St Andrews gives a vivid biography of Hypatia and her influence in ancient mathematics, neoplatonic philosophy, and Alexandrian politics. Includes links to related biographies and topics.
University of St. Andrews (UK)
University of St. Andrews: Claudius Ptolemy
This site, which is provided for by the University of St. Andrews, contains biological information as well as the works of Ptolemy.
CK-12 Foundation
Ck 12: Earth Science: Revolutions and Rotations of the Earth Study Guide
[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about how our understanding of the Earth's movements evolved from ancient times and what we know today. Includes some questions to check...
Khan Academy
Khan Academy: Claudius Ptolemy
Claudius Ptolemy believed the Earth was the center of the universe. Learn about his theories and life in this biographical article.
City University of New York
Map Projection Basics: Bits of Map Projection History
Surveys the ideas of Claudius Ptolemy (90-170 AD) in regard to the shape of the world and his influence on the history of mapmaking.
Other
The Ptolemaic Model of the Planetary System
An easy-to-read description and history of Ptolemy's geocentric model of the universe. Geocentric means that Ptolemy believed the Earth was the center of the universe.
Other
Ancient Maps: Frames of the Greek World
Understanding that perceptions of the Greek world changed over time is important to reading Greek literature. The perceptions of Homer, Hecateus, Eratosthenes, and Ptolemy are presented as map frames at this site. Consider how Homer's...
Other
Nine planets.org: Ptolemy
This site from the University of Arizona provides a background of Ptolemy's profound influence in the areas of astronomy, geography, and cartography. Includes good pictures and related links.
ClassFlow
Class Flow: Science Revolution
[Free Registration/Login Required] This flipchart discusses What occurred in the 1500's to change science? Changes in science beliefs began with the universe and continued to development of the scientific method.
Curated OER
Rice University: The Ptolemaic System
This site from The Galileo Project of Rice University provides this discourse on the Ptolemic System that attempted to explain the motion of heavenly bodies. Pictures, charts, and links are all provided for additional information.
Curated OER
Rice University: The Ptolemaic System
This site from The Galileo Project of Rice University provides this discourse on the Ptolemic System that attempted to explain the motion of heavenly bodies. Pictures, charts, and links are all provided for additional information.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Ptolemy
Claudius Ptolemaeus, known as Ptolemy, was an ancient geographer, astrologer, and astronomer.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Ptolemy
Claudius Ptolemaeus, known as Ptolemy, was an ancient geographer, astrologer, and astronomer.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Ptolemy
He was a mathematician, geographer, astronomer, and astrologer. "The name of a line Graeco-Egyptain kings, who succeeded on the division of the empire of Alexander the Great, to the portion of his dominions of which Egypt was the head."...
Curated OER
Smithsonian Libraries: Scientific Identity: Ptolemy (Ca. 100 Ca. 170)
A portrait of Ptolemy from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.
Curated OER
University of St Andrews: Claudius Ptolemy
This site, which is provided for by the University of St. Andrews, gives a biography of the Greek astronomer and mathematician who supported the theory of geocentricism.