Died on 869
Ahmad ibn 'Abdallah Habash Hasib Marwazi was a Persian astronomer, geographer, and mathematician from Merv in Khorasan who described first time Trigonometric ratios: SIN ,COS, TAN & COT. He flourished in Baghdad, and died a centenarian after 869. He worked under the A...
Born on 700 Died on 800
Harbi al-Himyari was an Arab scholar from Yemen, who lived between the 7th and 8th century CE. He is famous as the teacher of the Islamic alchemist Jābir ibn Hayyān. According to Holmyard nothing else is known about him.
Died on 1295
Hasan al-Rammah (died 1295) was a Syrian chemist and engineer. He was the first Muslim chemist to successfully create and engineer modern explosives. Hasan al-Rammah included 107 gunpowder recipes. He improved upon the gunpowder that was invented in China. He was the first Muslim to invent expl...