New Delhi’s Iron Pillar has long fascinated scientists both at home and abroad. But it wasn’t until 2003 that experts cracked the metallurgical mystery behind this unusual attraction.

It’s 1600 years old. It’s made of wrought iron. It stands pristine amid the ruins of an ancient temple. And it refuses to rust. The origin of the remarkable Iron Pillar, part of the world ...

Typically, iron and iron alloy structures exposed to the air or moisture oxidize over time, rendering them coated in rust unless they are protected, like the Eiffel Tower, by layers of special paint.

An iron pillar placed in the UNESCO-listed Qutub Minar complex in New Delhi has long fascinated scientists for surviving over 1,600 years without rust. Standing tall at 7.2 metres and weighing six ...

Iron Pillar on Wednesday said it had closed a $129 million Series B- and C-fund to back cloud software startups from India, as the venture capital firm increased its exposure to the rapidly ...

New Delhi’s Iron Pillar has long fascinated scientists both at home and abroad. But it wasn’t until 2003 that experts cracked the metallurgical mystery behind this unusual attraction.

Typically, iron and iron alloy structures exposed to the air or moisture oxidize over time, rendering them coated in rust unless they are protected, like the Eiffel Tower, by layers of special paint.

Typically, iron and iron alloy structures exposed to the air or moisture oxidize over time, rendering them coated in rust unless they are protected, like the Eiffel Tower, by layers of special paint.