Leonardo Da Vinci

Leonardo Da Vinci, who was most famous for painting Mona Lisa and The Last Supper, also was very interested in physics, math, geology, engineering, writing, and botany. Today at the British Library, I saw some of Da Vinci's original notebooks from the 1400's. One of the notebooks contained his studies on optics. the behavior of light. Unfortunately I was not able to take a picture of it because of the library's rules.