2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57600Unusual features of water waves that Galileo described in a letter to Cardinal Orsini in 1616 are revisited from the perspectives of singular optics and geometric analysis.tcilatex, 38 pages. To appear in the collection "Galileo and the Cultural Universe of the Renaissance," edited by G. Cwilich and F. FelsensteinMathematical PhysicsHistory and Overview76B15text