What a British tabloid published, reproduced partially by the web page "brobible" did not satisfied.
We warned about the sources. We just shared the information to be considered by you as an idea that maybe could not be so wrong.
Anyway, we continue intensely searching and we find good stuff.
This is one of it. It's too long to translate it into Spanish and present a version in that language but if there is anyone of you that would like to contribute with the translation, you are more than welcome. After all, this web page belongs to all of us.
And here is the reference to an official document, a patent extended by the U.S. Navy to Salvatore Cezar Pais, Ph.D.