This simulation reveals the basic principles beneath InsideL-based project 'Primo Levi at Ara Pacis' (Ara Pacis location).
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Move your mouse over the white circles and notice that each of those, marked with a IUPAC periodic element abbreviation, triggers a callout which reveals a random paragraph.
This paragraph is, indeed, an extract of the chapter related to the chemical symbol of 'Il Sistema Periodico', a book of Primo Levi's literature productions (wiki link)