A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul
The history of Islamic astronomy falls under the influence of Aristotelian cosmology, in which orbs have a principal role in holding and moving the planets. Based on the prevalent accepted Aristotelian idea, these orbs are spherical shells that rotate around their center and are made of a particular...
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Scientific Studies Association (ILEM)
2022-10-01
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Series: | Nazariyat: Journal for the History of Islamic Philosophy and Sciences |
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Online Access: | https://nazariyat.org/content/5-sayilar/17-cilt-8-sayi-2/5-hanif-ghalandari-hassan-amini-o-gunes/5_hanif_ghalandari_hassan_amini_en.pdf |
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author | Hanif Ghalandari Hassan Amini |
author_facet | Hanif Ghalandari Hassan Amini |
author_sort | Hanif Ghalandari |
collection | DOAJ |
description | The history of Islamic astronomy falls under the influence of Aristotelian cosmology, in which orbs have a principal role in holding and moving the planets. Based on the prevalent accepted Aristotelian idea, these orbs are spherical shells that rotate around their center and are made of a particular substance called aether. No lightness or heaviness, rarefaction or condensation, and generation or corruption exist in the aether-filled heavens. Subsequently, any tearing or mending of these orbs is impossible. This assumption leads to a basic rule: the planets do not move in an orb but by an orb. During the medieval Islamic age, new models emerged for solving some of the anomalies in Ptolemaic astronomy; however, the assumption above was rarely disputed. This paper will introduce an unordinary case based on the book Science of the Cosmos and the Soul by Shams al-Dīn al-Samarqandī in which, besides the standard Ptolemaic system, some alternative models were briefly presented: in these new models, the tearing or mending of these orbs is possible. Considering that this assumption conflicts with Aristotelian physics, these models can be regarded as non-Aristotelian. |
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institution | Directory Open Access Journal |
issn | 2547-9415 |
language | English |
last_indexed | 2024-04-10T08:43:55Z |
publishDate | 2022-10-01 |
publisher | Scientific Studies Association (ILEM) |
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series | Nazariyat: Journal for the History of Islamic Philosophy and Sciences |
spelling | doaj.art-9d85a2186c974928bcf0c671388361482023-02-22T14:15:24ZengScientific Studies Association (ILEM)Nazariyat: Journal for the History of Islamic Philosophy and Sciences2547-94152022-10-0182129144doi.org/10.12658/Nazariyat.8.2.M0188enA Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the SoulHanif Ghalandari0https://orcid.org/0000-0002-4307-5809Hassan Amini1https://orcid.org/0000-0003-4849-8269University of TehranUniversity of TehranThe history of Islamic astronomy falls under the influence of Aristotelian cosmology, in which orbs have a principal role in holding and moving the planets. Based on the prevalent accepted Aristotelian idea, these orbs are spherical shells that rotate around their center and are made of a particular substance called aether. No lightness or heaviness, rarefaction or condensation, and generation or corruption exist in the aether-filled heavens. Subsequently, any tearing or mending of these orbs is impossible. This assumption leads to a basic rule: the planets do not move in an orb but by an orb. During the medieval Islamic age, new models emerged for solving some of the anomalies in Ptolemaic astronomy; however, the assumption above was rarely disputed. This paper will introduce an unordinary case based on the book Science of the Cosmos and the Soul by Shams al-Dīn al-Samarqandī in which, besides the standard Ptolemaic system, some alternative models were briefly presented: in these new models, the tearing or mending of these orbs is possible. Considering that this assumption conflicts with Aristotelian physics, these models can be regarded as non-Aristotelian.https://nazariyat.org/content/5-sayilar/17-cilt-8-sayi-2/5-hanif-ghalandari-hassan-amini-o-gunes/5_hanif_ghalandari_hassan_amini_en.pdfshams al-dīn al-samarqandīscience of the cosmos and the soulpost-classical islamic astronomynon-aristotelian physicsplanetary modelsptolemaic astronomy |
spellingShingle | Hanif Ghalandari Hassan Amini A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul Nazariyat: Journal for the History of Islamic Philosophy and Sciences shams al-dīn al-samarqandī science of the cosmos and the soul post-classical islamic astronomy non-aristotelian physics planetary models ptolemaic astronomy |
title | A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul |
title_full | A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul |
title_fullStr | A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul |
title_full_unstemmed | A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul |
title_short | A Non-Aristotelian Interpretation of Orbs in the Post-Classical Islamic Age: Shams al-Dın al-Samarqandı in Science of the Cosmos and the Soul |
title_sort | non aristotelian interpretation of orbs in the post classical islamic age shams al din al samarqandi in science of the cosmos and the soul |
topic | shams al-dīn al-samarqandī science of the cosmos and the soul post-classical islamic astronomy non-aristotelian physics planetary models ptolemaic astronomy |
url | https://nazariyat.org/content/5-sayilar/17-cilt-8-sayi-2/5-hanif-ghalandari-hassan-amini-o-gunes/5_hanif_ghalandari_hassan_amini_en.pdf |
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