Standing at the center of the Quwwatul Mosque the Iron Pillar is one of Delhi's most curious structures. Dating back to 4th century A.D., the pillar bears an inscription which states that it was erected as a flagstaff in honour of the Hindu god, Vishnu, and in the memory of the Gupta King Chandragupta II (375-413). How the pillar moved to its present location remains a mystery. The pillar also highlights ancient India's achievements in metallurgy. THE PILLAR IS MADE OF 98 PER CENT WROUGHT IRON AND HAS STOOD 1,600 YEARS WITHOUT RUSTING OR DECOMPOSING. The pillar has attracted the attention of archaeologists and materials scientists and has been called “a testament to the skill of ancient Indian blacksmiths” because of its high resistance to corrosion. The corrosion resistance results from an even layer of crystalline iron hydrogen phosphate forming on the high phosphorus content iron, which serves to protect it from the effects of the local Delhi climate.
3rd DAY - INDIA (NEW DELHI) - QUTAB MINAR III - IRON PILLAR
by Antonio Gil August. 26, 2015 2069 views