In In 1825 George
Stephenson built the Locomotion for the
Stockton and Darlington Railway. This was
the first public steam railway in the world
and then in 1829, he built The Rocket which
was entered in and won the Rainhill Trials.
dian Railways is divided into 18 zones.
Recently added South Coast Railway zones
in Indian Railway (2019).
ভাষা ও ভাষার উৎপত্তি
Plasma Physics (প্লাজমা পদার্থবিদ্যা)
Laser (লেজার)
Quantum materials (কোয়ান্টাম উপকরণ)
Particle physics (কণা পদার্থবিজ্ঞান)
Optics (অপটিক্স এবং ফোটোনিক্স)