How was the film invented?

1878, in order to bet with millionaire white, Stanford, the American railway king, hired a famous photographer Mubridge to help him prove that four hooves of a running horse left the ground at the same time. Mubridge put 12 plates in 12 cameras, let 12 assistants control 12 ropes to cross the runway, and then signaled the horse to run. The horseshoe kicked off the rope, and every time it kicked off, it turned on the camera and took pictures automatically. Later, he used 24 cameras to shoot according to this method and achieved good results.

Mubridge put the continuous snapshots of these Mercedes-Benz horses on the slide projector, and the static horses became running horses. 1888, the Frenchman Male invented the first film camera. He made the moving film from photosensitive film for the first time, and the film was born.