It will depend on the app as the developer will have to build this feature in. It generally can be the mirror of the screen or even the videos you have synced. Its important to note that if you sync drm'd media from itunes to your iPad, it will not output.
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.