Hi ! Hello ! Bonjour ! Holà ! Que tal !? I am Richard Olivier HARTMANSHENN .I could answer in French ,English , Spanish and less fluently in Italian; ;in German I read with difficulty..After a long period of my life devoted to Science and Technology ( as you could eventually discover later in my C.V° ) I am now fully retired and not completely fed up with Nuclear Physics , Quantum mechanism,Cosmology and Astronomy or miscellaneous matters connected..Of course I have lost the means , tools and variety of ease we had in my professional world . Now, only a personal calculator!!But I am still remaining interested in the field quoted above ; I am still reading scientific literature and intend to give in my blog comments and chats about recent events ,experiments or new developments