Labels:text | book OCR: Leonardo's probable purpose in compiling the Codex Leicester was to collect his water studies for an eventual book for hydraulic engineers, the water masters of his day. Rivers, the "superhighways" of Renaissance Italy, were vital to commerce, and Italy was one of Europe's first regions with a capitalistic economy. Navigation was an essential skill, and stabilizing the flow and erosion of riverbanks and riverbeds was a major factor in successful commerce. Leonardo sought ways to prevent bank erosion by controlling water flow, thereby laying the groundwork for today's engineers. Quegte nocturna has to Go allanghat .