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    Magnification: How to Turn a Spyglass Into an Astronomical Telescope.Zik Yaakov & Hon Giora - 2012 - Archive for History of Exact Sciences 66 (4):439–464.
    According to the received view, the first spyglass was assembled without any theory of how the instrument magnifies. Galileo, who was the first to use the device as a scientific instrument, improved the power of magnification up to 30 times. How did he accomplish this feat? Galileo does not tell us what he did. We hold that such improvement of magnification is too intricate a problem to be solved by trial and error, accidentally stumbling upon a complex procedure. We construct (...)
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  2. Between Discovery and Disclosure: Galileo and the Telescope.Zik Yaakov & Helden van Albert - 2003 - Bibilioteca di Nuncius 49:173-190.
     
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  3. Galileo’s Knowledge of Optics and the Functioning of the Telescope - Revised.Zik Yaakov & Hon Giora - manuscript
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  4. Mathematical Instruments: The Technological Infrastructure of Seventeenth Century Science.Zik Yaakov - 2006 - Algorismus 59:439-465.
  5. Theory and Practice of Early Telescopic Observation: Galileo and the Telescope.Zik Yaakov - 2005 - In H. Grob B. And Hooijmaijers (ed.), Who needs scientific instruments. Museum Boerhaave. pp. 195-200.
     
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