My idea for a research paper

The truth is that cost me more than I thought choosing the research paper. First because you have to look good all the options that you have and choose a theme that you like. After because I may have to choose a theme, but I didn't know what to do, and decided to choose a one proposed theme.

In fact I would have liked to choose a practical theme, because I keen on technology. But it involves several problems, because apart from the practice should also I make the writing of this.

I'm interested especially in the subjects of mathematics, physics or chemistry.