Leonardo da Vinci is a great Italian artist, scientist, engineer, musician and architect, founder of the art of the High Renaissance. He was called a sorcerer, a servant of the devil, a divine spirit, and he considered himself, first of all, an engineer who was forced to paint in order to earn money. His inventions - designs for a submarine, a tank, a loom, a ball bearing, a flying machine, a parachute - were several centuries ahead of their time, and the secret of the famous Mona Lisa's smile still occupies the minds of many people around the world.