DISCOVERIES & INVENTIONS BY MUSLIMS 3
21. Jabir ibn Hayyan discovered Sulphuric and Nitric acid.
22. The first royal pleasure gardens in Europe were opened in 11th-century Muslim Spain.
23. The calculations of Muslim astronomers were so accurate that in the 9th century they reckoned the Earths circumference to be 40,253.4km - less than 200km out.
24. Muhammad ibn Zakariya Razi (Rhazes) was responsible for discovering "allergic asthma", and was the first physician known to have written articles on allergy and the immune system.
25. Over 1000 years ago, the polymath Al-Kindi developed the geometry required to predict when the crescent moon will appear, which tonight marks the start the Ramadan.
26. Europeans borrowed ribbed vaulting, rose windows and dome-building techniques from the Muslims.
27. A form of chess was played in ancient India but the game was developed into the form we know it today in Persia. From there it spread westward to Europe.
28. Al Jazari devised some of the first mechanical clocks driven by water and weights, and was the father of robotics.
29. The crank-shaft, one of the most important mechanical inventions in the history of humankind, was created by an ingenious Muslim engineer called Al Jazari to raise water for irrigation.
30. In hematology, Abu al-Qasim al-Zahrawi (Abulcasis) wrote the first description on haemophilia, a hereditary genetic disorder, in his Al-Tasrif.
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