Multispectral Imaging Recovers Parts of an Ancient Scientific Text

News April 11, 2023

(© Veneranda Biblioteca Ambrosiana/Mondadori Portfolio)
SHARE:
Claudius Ptolemy Text
(© Veneranda Biblioteca Ambrosiana/Mondadori Portfolio)

NEW YORK, NEW YORK—About half of an ancient text discovered in an abbey library in northern Italy in the early nineteenth century has been recovered with multispectral imaging and translated by Alexander Jones of New York University and his colleagues at the University of Paris, according to a Live Science report. Written in Greek on parchment, the text has been attributed to mathematician Claudius Ptolemy, who lived in the first century A.D. “Unfortunately, we don’t have the first and the last pages, so we don’t have an author name,” Jones said. “But things started to show up that are very characteristic of Ptolemy’s Greek vocabulary,” he explained. The work describes how to construct a meteoroscope, an instrument made up of nine metal rings that was used to make astronomical calculations. The pages were difficult to read because in the sixth or seventh century, the parchment was reused for another work in Latin by a Spanish theologian. Then, in 1819, the cleric who discovered the text attempted to read the ancient work by removing the Latin text with chemicals, turning portions of the pages dark brown. Read the original scholarly article about this research in Archive for History of Exact Sciences. To read about another ancient astronomical instrument, go to "Mapping the Past: The Nebra Sky Disc."

  • Features March/April 2023

    The Shaman's Secrets

    9,000 years ago, two people were buried in Germany with hundreds of ritual objects—who were they?

    Read Article
    Photographs Juraj Lipták
  • Letter from the Faroes March/April 2023

    Lost History of the Sheep Islands

    New evidence shows that the remote North Atlantic archipelago was settled hundreds of years before the Vikings reached its shores

    Read Article
    (Polhansen/Adobe Stock)
  • Artifacts March/April 2023

    Andean Wind Instruments

    Read Article
    (Luis Manuel González La Rosa)
  • Digs & Discoveries March/April 2023

    Peru’s Lost Temple

    Read Article
    (Courtesy Sâm Ghavami)