When you hear the name Leonardo da Vinci, you probably think of the artist’s 1503-05 Mona Lisa. But do you think of flying machines, devices to measure wind speed, and clocks? Probably not.
Leonardo was one of the greatest thinkers of the Italian Renaissance, a period of achievement in science, art, and ideas in the 15th and 16th centuries. He was interested in science as well as art, and he recorded his observations and ideas in more than 6,000 pages of sketchbooks.
In his notes, Leonardo often made technical drawings—precise diagrams like the one shown above. The fine lines and details in sketches like this one echo the style Leonardo used in preparatory drawings for his paintings, creating a clear visual link between his sketchbooks and his masterpieces.