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The tree is relatively large, typically reaching 8 to 15 meters in height, while some Central Asian varieties may grow up to 20 meters. Its...

Aluminium (from alumen, meaning alum) is the chemical element Al, belonging to Group III of the Mendeleev periodic table. Its atomic number is 13, and...

Abu Ali al-Husayn ibn Abd Allah ibn al-Hasan ibn Ali ibn Sina, better known as Avicenna or Abu Ali ibn Sina (Persian: ابوعلى سينا‎; c....