Ptolemy’s longitudes and Eratosthenes’ measurement of the earth’s circumference

2013/02/06 by Lucio Russo · 2 citations
Physics and Astronomy · Social Sciences · Mathematics · #Historical Astronomy and Related Studies #Historical and Literary Studies #Historical Geography and Cartography #Ptolemy's table of chords #Circumference #Geodesy #Value (mathematics) #Mathematics #Geology #Statistics #Geometry

paper · pdf · doi:10.2140/memocs.2013.1.67

openalex publication_date 2013/02/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02

Abstract

International audience

Cited by

• Determination of the longitude difference between Baghdad and Khwarezm using a lunar eclipse (the method of Abu Rayhan al-Biruni and Abu al-Wafa al-Buzjani)
• Geography (Ptolemy) [wikipedia]

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