This mysterious iron pillar in India has been exposed to the elements for over 1,600 years. So why hasn’t it ever rusted?
Can an iron structure stand tall for 1,600 years without rusting, despite being exposed to the elements? By Poonam Binayak, CNN It seems implausible, considering the supposed lack of technology at the time of its construction. Yet, inside New Delhi’s UNESCO-listed Qutb Minar complex – a collection of historic monuments and buildings built in the early 13th century… Read More This mysterious iron pillar in India has been exposed to the elements for over 1,600 years. So why hasn’t it ever rusted?