What is the meaning of the film?

The prehistory of the film is almost as long as its history "(2). As a product of modern science and technology, the birth of film has indeed experienced a long experimental process by many scientists, inventors and even imitators in European countries. Their scientific exploration and experiment on sports optical illusion can be traced back to the beginning of19th century. However, the understanding and application of "light and shadow theory" can be traced back to China more than 2,000 years ago. According to written records, in the 5th century BC, Mozi put forward the theory that "light dies when it reaches the scene (shadow)", which is the earliest and most scientific contribution of human beings to the "optical theory". The "Lantern Shadow Play", which originated in the period of Emperor Wu of Han Dynasty and spread widely after Tang and Song Dynasties, is the earliest and simplest application and practice of "Light Theory". /kloc-in the 3rd century, "lantern shadow play" spread to the Middle East, Europe, Southeast Asia and other places, resulting in vivid and touching visual games such as "slide show" and "carousel". Movies originated from these visual entertainment games. As for the scientific, technical and physical principles on which the invention of movies is based, there are mainly the following three aspects.

(2) the encyclopedia Britannica, film history, the first sentence. & ltBR & gt& ltBR & gt& ltB& gt； First, visual retention.