His dual experience as painter and theoretical physicist led him to write since 1967, mainly in Leonardo, over 30 articles on art and science particularly on the comparison of their creative processes, co-edit (with L.Alcopley and G.Careri) a special issue “Art and Science: Similarities, Differences and Interactions,” publish two books on these themes, give numerous lectures, and co-organize several colloquia. Time is an essential element of his paintings, either in their elongated format or in the series. He has given numerous concerts-exhibitions and a CDExtra "Paintings Perused," made up from 400 of his paintings, with the seven composers of MIM. He has served as Guest Editor, with Jack Ox, for "Synaesthesia and Intersenses" in Leonardo. Email: jmandelbrojt@wanadoo.fr.