Are hot air balloons different from blimps?

Or (almost not at all any more) hydrogen. The gas does not have to be heated in order for the ship to stay afloat. In contrast, a dirigible is a rigid airship similar to a blimp, and it uses a gas like the blimp does to gain the air.

More.

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.