India and Russia are going to be the second country to have a Fifth Generation Fighter Aircraft after USA.

India's HAL ( Hindustan Aeronautics Limited ) and Russia's SUKHOI are in a joint venture to develop a Fully stealth air superiority multirole fighter aircraft name Sukhoi - T50.

Russia has agreed to deliver two aircrafts by the end of 2013.

India and Russia are the only countries to posses supersonic cruise missiles in the world.

Brahmos the first supersonic cruise missile named after two rivers namely "The Brahmaputra" of India and "Moskva" of Russia.

Brahmos is Air - Air or Surface to Air Cruise missile an outcome of Joint Venture between India and Russia just like the Sukhoi - T50.

It can be launched from a variety of launchers, even from submarines.

It has a speed of 2.5 Mach. One Mach is the speed of sound in air or vacuum.

While even USA's cruise missile is j

ust subsonic having a speed of 0.9 Mach.

Brahmos - II a Hypersonic missile is now in Induction phase expected to be moving at a speed of  7 Mach.
It'll be introduced by 2015.

Proud to be the First and only country to posses a supersonic cruise missile.
Proud to be Indian

Atom bomb
Two hemispheres of the same fissionable material U235 or Pu239 each of
mass lesser than critical mass are kept apart by a distance
When the bomb is to be exploded a third piece of U235 in the form of
a cylinder is propelled, so that it will fuse together with the other two pieces.

Since the total mass now is greater than the critical mass of the fissionable
substance, the uncontrolled chain reaction takes place

The atom bomb explosion and its model

During the time of explosion, the temperature rises to millions of degree celsius
and the pressure rises to millions of atmosphere. The explosion is accompanied
by a violent and intense blast of visible light, ultra violet, and x-rays causing a
blinding flash. In addition, a large amount of radioactive radiations and neutrons
are also released.


The atom bomb shortly called NUKE(Nuclear bomb)Its logo