How can I integrate my existing web application running on application server(i.e.JBOSS) with node.js?

You can use node to run a socket.io server which will let the client communicate bi-directionally with the server. So long as every client connects to the same socket.io server it will seamlessly integrate with your existing application.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.