The Iron Pillar located in Delhi, is
a 7 m (23 ft) column in the Qutb complex,
notable for the rust resistant composition of the
metals used in its con struction. The pillar has
attracted the attention of archaeologists and
materials scientists because of its high resistance
to corrosion. The corrosion resistance results
from an even layer of crystalline iron hydrogen
phosphate hydrate forming on the high
phosphorus content iron, which serves to protect
it from climate.
ভাষা ও ভাষার উৎপত্তি
Plasma Physics (প্লাজমা পদার্থবিদ্যা)
Laser (লেজার)
Quantum materials (কোয়ান্টাম উপকরণ)
Particle physics (কণা পদার্থবিজ্ঞান)
Optics (অপটিক্স এবং ফোটোনিক্স)