Labels:text | screenshot | font OCR: protect its banks. His drawings B are meant to show how currents of water are affected by well- placed impediments to their flow. Leonardo often relates small and large events of the same nature and explores the differences: "How the swollen waters of great floods make the same revolutions in their occurrences as do the small waters in their own; but the water engaged in the small one, which is little, makes little movement from the upper to the lower part of its wave; and that same quantity of water, in the very great wave, makes great movement, so