Question

who are al-biruni? what did he write about the skill of making lakes?

Answer 1

Abū Rayḥān Muḥammad ibn Aḥmad Al-Bīrūnī (Chorasmian/Persian: ابوریحان بیرونی‎‎ Abū Rayḥān Bērōnī;[3][4] New Persian: Abū Rayḥān Bīrūnī[5]) (4 September 973[6][7] – 9 December 1048[6]), known as Al-Biruni (Arabic: البيروني‎‎) in English,[8] was an Iranian[9][10][11][12] scholar and polymath from Khwarezm.Al-biruni was a traveller from Uzbekistan who came to India more than a thousand years ago. He wrote that the Indians were very skilled at making ponds. they piled up huge rocks joined with iron rods to build chabutaras around the lake. there were rows of staircases going up and down. the steps for going up and coming down were separate. So there was less crowding.