• DOI:10.1111/j.1749-6632.1987.tb37210.x
Corpus ID: 85989230

The Two Versions of the Tūs? Couple

@article{Ragep1987TheTV,
  title={The Two Versions of the Tūs? Couple},
  author={F. J. Ragep},
  journal={Annals of the New York Academy of Sciences},
  year={1987},
  volume={500}
}

• F. J. Ragep
• Published 1987
• Biology
• Annals of the New York Academy of Sciences

HE ATTEMPT by Nasir al-Din al-Tiisi (1201-1274Ia to reform the Ptolemaic T system has been known in the West (at least in the Modern Period) since the appearance in 1893 of Carra de Vaux’ translation of Book 11, Chapter Eleven of Al-Tadhkira fi ‘ilm al-hayb (Memoir on the science of astronomy). That Tiisi’s proposal was not an isolated event but rather one in a series of alternative cosmologies, ones bearing a striking resemblance to that of Copernicus, was first clearly enunciated in an… Expand

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