1 / 7

Ancient Greek Ptolemaic System and Modern Observatories

Explore the ancient Greek Ptolemaic system, a geometrical model of the universe used to discover the precession of the equinoxes. Discover advancements by Guo Shoujing, Al-Battani, Tycho Brahe, and modern observatories.

rafe
Télécharger la présentation

Ancient Greek Ptolemaic System and Modern Observatories

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ptolemaic system developed in ancient Greece: Geometrical model of universe – used to discover the “precession of the equinoxes” precession of the equinoxes

  2. Gnomon at Dengfeng; ca.1250 ADGuo Shoujing measures length of year to accuracy of about half a minute in 1280 AD

  3. Observatory at Samarkand, ca. 1450Al Battani measures tilt of ecliptic to within one hundredth of a degree: ca. 900 A.D.

  4. ca. 1600: Tycho Brahe and his observatory

More Related