2021, Scheda di catalogo, ITA
Elisa Guadagnini
Scheda relativa alla "Rettorica nova", presente nella lista dei libri posseduti da Leonardo.
2021, Contributo in atti di convegno, ITA
Giuseppe Tagarelli
I paesaggi leonardeschi sono rappresentazioni in cui l'artista raffigura i risultati delle speculazioni scientifiche dello scienziato in materia, di geologia, idrologia, cartografia, botanica e meteorologia. Oggi non solo i paesaggi ma anche gli appunti ed i disegni contenuti nei manoscritti di Leonardo hanno il merito di determinare una consapevolezza diffusa del valore del paesaggio, come elemento identitario, come manifestazione di cultura e come possibile sviluppo economico di un territorio.
2020, Articolo in rivista, ENG
Bicchieri M.; Biocca P.; Caliri C.; Romano F.P.
Leonardo's drawing technique has always been amongst the most fascinating topics in art history. To date, all conclusions on the materials that Leonardo used to perform his graphical works are mostly based on visual investigation. The support of technical analysis in this regard is still very limited. This paper focuses on the investigation - by means of non-invasive Raman and XRF spectroscopy and MA-XRF imaging spectroscopy - of two important drawings that Leonardo completed with the metalpoint technique. The research is part of a broader scientific project on twelve Leonardo drawings belonging to the Biblioteca Reale in Turin, coordinated by the Istituto Centrale Restauro e Conservazione Patrimonio Archivistico e Librario (ICRCPAL) in Rome. The project is aimed at characterization of the material components used and establishing the state of conservation of the artworks. The combination of Raman and XRF results together with the elemental distribution images provided by MA-XRF, allowed for an improved description of Leonardo's drawing technique. It also brought new fascinating insights on the analyzed graphic media, starting from the unusual use of a copper-based metalpoint, up to the peculiar white bone preparation.
2018, Articolo in rivista, ENG
Galli, A.; Gargano, M.; Bonizzoni, L.; Giorgione, C.; Ludwig, N.; Maspero, F.; Orlandi, M.; Zoia, L.; Martini, M.
Leonardo's Codex Atlanticus depicted a detailed drawing for an improved wooden canal lock to control the water flow in Milan's canal system. Museo Nazionale della Scienza e della Tecnologia "Leonardo da Vinci" in Milan has been conserving two pairs of canal gates in its storage for more than fifty years, until a complete and multidisciplinary study was launched to deeply examine one of the pairs. Both historical and scientific research teams joined in their efforts. While historical research has recreated the provenience of the gates until their arrival at the Museum, the scientific analyses were a new opportunity to help the reconstruction and characterization of the canal gates' history, enlightening the construction technique, the structural modifications over time and the conservation conditions. The multidisciplinary investigations involved radiographic analyses, 14C dating and the chemical characterization of the wood present in the gates. Through the radiographic analyses, it was possible to show the structure of the gates, the joints and the position of the metal components. Eighteen micro-samples were collected on selected areas of the gates and provided interesting results: artifacts dating the results span over four centuries. Furthermore, the degradation of the wood was studied by estimating the amount of lignin and holocellulose, and the distribution of their molecular weights.
2007, Articolo in rivista
Farini A.
Leonardo è stato il primo a dare dignità scientifica alle lenti