Leonardo Da Vinci's Big Picture

Leonardo Da Vinci's Big Picture: "Leonardo da Vinci excelled in all corners: painting, sculpting, architecture, engineering. He drew the first known plans for aircraft, including a helicopter. He created the first designs for machine guns, tanks and submarines. He drew the first accurate representations of the human anatomy. He painted 'The Last Supper' and 'Mona Lisa.' His output was due as much to the way he thought as to his talent, says Michael Gelb, author of 'How to Think

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