Translation of radioactividad

Thanks again for your time. I attached my avatar, it is very similar to the previous one. I have guided the development of the website, and I feel free to share my knowledge with others.
I've never been to America, but I wanna fly to New York in the end of this year, maybe go to Washington and possibly to LA. It would be nice one months to learn English there. I started to learn now.
How do you like comics? I have actually never read them, but for learning a new language it is a great way; but the language often is not too correct. But it has mostly more advantages than drawbacks.