Resource on the history of mechanical calculating machines includes a story about the controversy surrounding a replica of da Vinci's calculator.
Article from the Math Assoc. shows da Vinci's perspective on war, presenting the artist's large battle fresco and military engineering theories.
Notebooks of da Vinci contain sketches for a mechanical calculator that predates Pascal's invention by 150 years. View a working model.
Visionary Leonardo drafted a number of underwater contrivances. View sketches and read about the reconstruction of his flying ornithopter.
Company reproduces Leonardo's working machines for gifts and educational purposes. View models of an air propeller, bicycle and column hoist.
Find an excerpt from the book "Reading About the World, Volume I" that provides an unfinished treatise on painting written by Leonardo.
Washington State Univ. presents this overview of the renaissance artist and scholar. Read a translation of da Vinci's treatise, "The Painter."