Instruments

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Principle and Use of Ottoman Sundials
Muslim astronomers and engineers invented a variety of dials for timekeeping and for determining the times of the five daily prayers. In this thorough and technical study, Professor Attila Bir...
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The impact of Al-Battani on European Astronomy
Al-Battani used the widest variety of instruments: astrolabes, tubes, a gnomon divided into twelve parts, a...
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