Discover Iron Pillar of Delhi in New Delhi, India: An ancient iron pillar in Delhi that seems to be rustproof. The purpose of the Iron Pillar of Delhi is one of its many mysteries. Some say it was a flagstaff made for the king mentioned in the inscription. The Iron Pillar of Delhi is one of the best examples of medieval metallurgy. It was commissioned in Vidisha, Madhya Pradesh. It was one of the.

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The map created by people like you! The pillar, almost seven metres high and weighing more than six tonnes, was erected by Chandragupta II Vikramaditya — CEinterpretation based on careful analysis of archer type Gupta gold coins of the Gupta dynasty that ruled northern India — Vishnupadagiri is located on the Tropic of Cancer and, therefore, was a centre of astronomical studies during the Gupta period.

The Incredible Rust-Resistant Iron Pillar of Delhi | Ancient Origins

The Iron Pillar served an important astronomical function, in its original site; its early morning shadow fell in the direction of the foot of Anantasayain Vishnu in one of the panels at Udayagiri only in the time around summer solstice June The creation and development of the Udayagiri site appears to have been clearly guided by a highly developed astronomical knowledge.

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Therefore, the Udayagiri site, in general, and the Iron Mehdauli location in particular, provide firm evidence for the astronomical knowledge in India around CE.

It is the only piece of the Jain temple remaining, which stood there before being destroyed by Qutb-ud-din Aybak to build the Qutub Minar and Quwwat-ul-Islam mosque.

Qutub built around it when he constructed the mosque.

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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 — Also, it was confirmed that the temperatures required to form such kind of pillars cannot be achieved by combustion of coal.

The pillar is a testament to the high level of skill achieved by ancient Indian iron smiths in the extraction and processing of iron. It has attracted the attention of archaeologists and metallurgists as it has withstood corrosion for the last years, despite harsh weather. Its unusually good corrosion resistance appears to be due to a high phosphorus content, which together with favorable local weather conditions promotes the formation of a solid protective passivation layer of iron oxides and phosphates, rather than the non-protective, cracked rust layer that develops on most ironwork.

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A fence was erected around the pillar due to the popularity of a tradition that considered it good luck if you could stand with your back to the pillar and make your hands meet behind it. Add your comment in english.

Phosphorus is common in primitive wrought iron. It makes the iron brittle so is reduced in modern steels.

It adds slightly to atmospheric corrosion resistance and is used idon a few specialty steels today. The corrosion resistance of the post to due to the climate.

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