Question

conclusion of iron pillar of delhi india

Answer 1

iss pillar mein ek metal ki layer Hoti h jo already oxidised ho. chuki use oxygen k saath oxidised hone ki jrurt nhi so use aaj tak rust nhi LGA h

Answer 2

Chemical analyses have indicated that the pillar was astonishingly pure or low in carbon compared with modern commercial iron. In 1963, M.K. Ghosh of the National Metallurgical Laboratory concluded that the pillar had been very effectively forge-welded.