Leonardo da Vinci was an Italian polymath: architect, anatomist, sculptor, engineer, inventor, mathematician, musician, and painter. He has been described as the archetype of the "Renaissance man", a man infinitely curious and equally inventive. He is widely considered to be one of the greatest painters of all time and a universal genius. Leonardo is famous for his realistic paintings, such as the Mona Lisa and The Last Supper, as well as for influential drawings such as the Vitruvian Man. He conceived of ideas vastly ahead of his own time, notably conceptually inventing a helicopter, a tank, the use of concentrated solar power, a calculator, a rudimentary theory of plate tectonics, the double hull, and many others. In addition, he greatly advanced the state of knowledge in the fields of anatomy, astronomy, civil engineering, optics, and the study of water (hydrodynamics). Of his works, only a few paintings survive, together with his notebooks (scattered among various collections) containing drawings, scientific diagrams and notes. Leonardo da Vinci had no surname in the modern sense; "da Vinci" simply means "from Vinci". His full birth name was "Leonardo di ser Piero da Vinci", meaning "Leonardo, son of (Mes)ser Piero from Vinci."