2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84308This paper has been translated into German and will be included, in a somewhat altered form, in a book Sterne der Zertrummerung, Marietta Blau, Wegbereiterin der Moderne Teilchenphysik, Brigitte Strohmaier and Robert Rosner, eds., Boehlau Verlag, Wien.44 pages, plain TeXHistory and Philosophy of Physicstext