Islamo European Boundaries in the Fifteenth Century The Philosophical Transmission of the Foundations of Qushjis Astronomical Models Dr Mustapha KaraAli International Islamic University Malaysia ID: 790553
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Slide1
“Constructivism across Islamo-European Boundaries in the Fifteenth Century: The Philosophical Transmission of the Foundations of Qushji’s Astronomical Models
Dr Mustapha
Kara-Ali
International Islamic University Malaysia
Slide2TopicsPrograms in Astronomy: Realism, Instrumentalism and Constructivism
Constructivism and the Philosophy of Mathematics
Ptolemy’s “Fixed” Equant: A Challenge for Realism
The Qushji Compounder as a Solution to the Equant Problem
The Philosophy of a Qushji Compounder
The Dynamic Construction of the Ellipse
Qushji’s Astronomical Models
Conclusion: Philosophic Transmission and the Copernican Revolution
Slide3Qushji Compounder
Refer to M. Kara-Ali,
Constructivism at the birth of the scientific revolution
, PhD Dissertation, IIUM, 2014.
Slide4Qushji’s Equant Model
Slide5`Urdi Solution to the Equant (Upper)
Slide6`Urdi Solution to the Equant (1.5/20)
Refer to M. Kara-Ali,
Constructivism at the birth of the scientific revolution
, PhD Dissertation, IIUM, 2014.
Slide7`Urdi Solution (7:20)
Refer to M. Kara-Ali,
Constructivism at the birth of the scientific revolution
, PhD Dissertation, IIUM, 2014.
Slide8Qushji’s Solution to the Equant
Slide9Qushji’s Solution to the Equant
Refer to M. Kara-Ali,
Constructivism at the birth of the scientific revolution
, PhD Dissertation, IIUM, 2014.
Slide10Qushji’s Proof: Eccentric Model (lower)