These ruins are located in the city of Pind Dadan Khan in Jhelum district of Punjab. This ruin is not the laboratory of the famous 10th century scientist "Aburihan Al-Biruni".
Sitting in it, they estimated the total measurement of the earth using the peaks of these mountains.
According to al-Biruni, the diameter of the earth was 3928.77 km
Whereas according to the current latest calculation of NASA it is 3847.80 km.
That is a difference of only 81 km.
Al-Biruni was attached to the court of Mahmud Ghaznavi, came to Klarkahar with the Afghan army, the Afghans built this laboratory on the design of Al-Biruni.
It is the knowledge of our educational system that today, except for a few shepherds, no one visits this wonder.
Al-Biruni died in 1050 in Ghazni Afghanistan and is buried there.
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