/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: StefanoSpezia https://cdn.slidesharecdn.com/profile-photo-StefanoSpezia-48x48.jpg?cb=1685080777 "A perfect calculation must be destroyed" (E. Majorana, 1906-1938 ?)