Iron pillar located in Qutb complex, Delhi India is 7 m (23 ft) column famous for the rust-resistant composition of the metals used in its construction. A testament to the skill of ancient Indian blacksmiths weights nearly 7000 kg and is over 1600 years old.
The pillar has attracted attention of archaeologists and material scientists.
Scientists think that the secret of rust resistance is contain of phosphorus. Phosphorus reacts with humidity and oxygen and makes invisible protective film.
This theory is based on research of Russian scientists, who examine iron from Moon.
Iron from Moon is rust-resistant too!
There is definitely something strange going on. Indian people believe that Iron pillar is protected by Gods against any evil including rust.
Will this column stay rust-resistant?
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