Parabolic bridge. Model by Ermenegildo Menighetti, 1952-1953. Leonardo's drawing (Codex Atlanticus, sheet 855, 1480-90). The science and Technology Museum Leonardo da Vinci. Milan. Italy.
Parabolic bridge. Model by Ermenegildo Menighetti, 1952-1953. Leonardo's drawing (Codex Atlanticus, sheet 855, 1480-90). The science and Technology Museum Leonardo da Vinci. Milan. Italy.