ocr: the incident motion because the percussion of the reflex water takes place in water ofl little motion. in thesea, and the sea does not empty the waters with that speed with which they come toit, and it therefore makes a new reflection against the first reflex motion." B Itis - interesting to note here a comparison of Leonardo's discussion of water and light with impetus mechanics, the science that provided him with a model for analyzing the process of motion in a straight line. In the case of light, there iS no need to consider diminished force
