Intro

What you will find in this blog is the result of reflections on scientific topics known and less-known, of links and references ... so a hotchpotch of ideas.

Many descriptions and sources quoted in the posts are taken from Wikipedia, The Free Encyclopedia; in any case, the authors of quotes and links can ask me to be removed them from the blog or, if you do need them, to quote freely this site.
The various posts are only intended to present the most various disparate topics that will be explored via the links in the text.
In summary a free flow of ideas.