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400 BCE
first astronomical textbook
The first astronomical textbook had all the knowledge of everything astronomical discovery. -
200 BCE
astrolobe
The astrolabe was improved by Muslims -
164 BCE
sundial
The Sundial was made by Ibn Al-Shatir so the people could tell time -
1190
geocentric model
Around 1190, Al-BItruji published an alternative geocentric system to Ptolemy's model. -
1261
equatorium
The euatorium was built for the specific purpose to of seeing where the sun is. -
1582
mechanical calendar or box of the moon
The mechanical calendar was made because they had no sense of time in term of months and years -
theory of planetary motion
The theory of planetary motion was made to prove that everything is moving. -
tusi couple
The tusi couple is device that has a small circle orbiting a bigger cirlce